ID CVE-2014-7822
Summary The implementation of certain splice_write file operations in the Linux kernel before 3.16 does not enforce a restriction on the maximum size of a single file, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted splice system call, as demonstrated by use of a file descriptor associated with an ext4 filesystem.
References
Vulnerable Configurations
  • Linux Kernel 3.15.8
    cpe:2.3:o:linux:linux_kernel:3.15.8
CVSS
Base: 7.2 (as of 16-03-2015 - 11:55)
Impact:
Exploitability:
CWE CWE-264
CAPEC
  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.
  • Manipulating Input to File System Calls
    An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
exploit-db via4
description Linux Kernel splice() System Call - Local DoS. CVE-2014-7822. Dos exploit for linux platform
file exploits/linux/dos/36743.c
id EDB-ID:36743
last seen 2016-02-04
modified 2015-04-13
platform linux
port
published 2015-04-13
reporter Emeric Nasi
source https://www.exploit-db.com/download/36743/
title Linux Kernel splice System Call - Local DoS
type dos
nessus via4
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-1272.NASL
    description The remote Oracle Linux host is missing a security update for one or more kernel-related packages.
    last seen 2019-02-21
    modified 2018-09-17
    plugin id 85097
    published 2015-07-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85097
    title Oracle Linux 6 : kernel (ELSA-2015-1272)
  • NASL family Amazon Linux Local Security Checks
    NASL id ALA_ALAS-2015-476.NASL
    description The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a 'negative groups' issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c. (CVE-2014-8989) A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822)
    last seen 2019-02-21
    modified 2018-04-18
    plugin id 81322
    published 2015-02-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81322
    title Amazon Linux AMI : kernel (ALAS-2015-476)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-0102.NASL
    description From Red Hat Security Advisory 2015:0102 : Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's SCTP implementation validated INIT chunks when performing Address Configuration Change (ASCONF). A remote attacker could use this flaw to crash the system by sending a specially crafted SCTP packet to trigger a NULL pointer dereference on the system. (CVE-2014-7841, Important) * A race condition flaw was found in the way the Linux kernel's mmap(2), madvise(2), and fallocate(2) system calls interacted with each other while operating on virtual memory file system files. A local user could use this flaw to cause a denial of service. (CVE-2014-4171, Moderate) * A NULL pointer dereference flaw was found in the way the Linux kernel's Common Internet File System (CIFS) implementation handled mounting of file system shares. A remote attacker could use this flaw to crash a client system that would mount a file system share from a malicious server. (CVE-2014-7145, Moderate) * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) * It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-5471, CVE-2014-5472, Low) Red Hat would like to thank Akira Fujita of NEC for reporting the CVE-2014-7822 issue. The CVE-2014-7841 issue was discovered by Liu Wei of Red Hat. This update also fixes the following bugs : * Previously, a kernel panic could occur if a process reading from a locked NFS file was killed and the lock was not released properly before the read operations finished. Consequently, the system crashed. The code handling file locks has been fixed, and instead of halting, the system now emits a warning about the unreleased lock. (BZ#1172266) * A race condition in the command abort handling logic of the ipr device driver could cause the kernel to panic when the driver received a response to an abort command prior to receiving other responses to the aborted command due to the support for multiple interrupts. With this update, the abort handler waits for the aborted command's responses first before completing an abort operation. (BZ#1162734) * Previously, a race condition could occur when changing a Page Table Entry (PTE) or a Page Middle Directory (PMD) to 'pte_numa' or 'pmd_numa', respectively, causing the kernel to crash. This update removes the BUG_ON() macro from the __handle_mm_fault() function, preventing the kernel panic in the aforementioned scenario. (BZ#1170662) All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 81067
    published 2015-01-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81067
    title Oracle Linux 7 : kernel (ELSA-2015-0102)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20150128_KERNEL_ON_SL7_X.NASL
    description - A flaw was found in the way the Linux kernel's SCTP implementation validated INIT chunks when performing Address Configuration Change (ASCONF). A remote attacker could use this flaw to crash the system by sending a specially crafted SCTP packet to trigger a NULL pointer dereference on the system. (CVE-2014-7841, Important) - A race condition flaw was found in the way the Linux kernel's mmap(2), madvise(2), and fallocate(2) system calls interacted with each other while operating on virtual memory file system files. A local user could use this flaw to cause a denial of service. (CVE-2014-4171, Moderate) - A NULL pointer dereference flaw was found in the way the Linux kernel's Common Internet File System (CIFS) implementation handled mounting of file system shares. A remote attacker could use this flaw to crash a client system that would mount a file system share from a malicious server. (CVE-2014-7145, Moderate) - A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) - It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-5471, CVE-2014-5472, Low) This update also fixes the following bugs : - Previously, a kernel panic could occur if a process reading from a locked NFS file was killed and the lock was not released properly before the read operations finished. Consequently, the system crashed. The code handling file locks has been fixed, and instead of halting, the system now emits a warning about the unreleased lock. - A race condition in the command abort handling logic of the ipr device driver could cause the kernel to panic when the driver received a response to an abort command prior to receiving other responses to the aborted command due to the support for multiple interrupts. With this update, the abort handler waits for the aborted command's responses first before completing an abort operation. - Previously, a race condition could occur when changing a Page Table Entry (PTE) or a Page Middle Directory (PMD) to 'pte_numa' or 'pmd_numa', respectively, causing the kernel to crash. This update removes the BUG_ON() macro from the __handle_mm_fault() function, preventing the kernel panic in the aforementioned scenario. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-12-28
    plugin id 81073
    published 2015-01-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81073
    title Scientific Linux Security Update : kernel on SL7.x x86_64
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-0694.NASL
    description Updated kernel-rt packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise MRG 2.5. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's XFS file system handled replacing of remote attributes under certain conditions. A local user with access to XFS file system mount could potentially use this flaw to escalate their privileges on the system. (CVE-2015-0274, Important) * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) * A race condition flaw was found in the Linux kernel's ext4 file system implementation that allowed a local, unprivileged user to crash the system by simultaneously writing to a file and toggling the O_DIRECT flag using fcntl(F_SETFL) on that file. (CVE-2014-8086, Moderate) * It was found that due to excessive files_lock locking, a soft lockup could be triggered in the Linux kernel when performing asynchronous I/O operations. A local, unprivileged user could use this flaw to crash the system. (CVE-2014-8172, Moderate) * A NULL pointer dereference flaw was found in the way the Linux kernel's madvise MADV_WILLNEED functionality handled page table locking. A local, unprivileged user could use this flaw to crash the system. (CVE-2014-8173, Moderate) Red Hat would like to thank Eric Windisch of the Docker project for reporting CVE-2015-0274, and Akira Fujita of NEC for reporting CVE-2014-7822. Bug fixes : * A patch removing the xt_connlimit revision zero ABI was not reverted in the kernel-rt package, which caused problems because the iptables package requires this revision. A patch to remove the xt_connlimit revision 0 was reverted from the kernel-rt sources to allow the iptables command to execute correctly. (BZ#1169755) * With an older Mellanox Connect-IB (mlx4) driver present in the MRG Realtime kernel, a race condition could occur that would cause a loss of connection. The mlx4 driver was updated, resolving the race condition and allowing proper connectivity. (BZ#1182246) * The MRG Realtime kernel did not contain the appropriate code to resume after a device failed, causing the volume status after a repair to not be properly updated. A 'refresh needed' was still listed in the 'lvs' output after executing the 'lvchange --refresh' command. A patch was added that adds the ability to correctly restore a transiently failed device upon resume. (BZ#1159803) * The sosreport executable would hang when reading /proc/net/rpc/use-gss-proxy because of faulty wait_queue logic in the proc handler. This wait_queue logic was removed from the proc handler, allowing the reads to correctly return the current state. (BZ#1169900) Enhancements : * The MRG Realtime kernel-rt sources have been modified to take advantage of the updated 3.10 kernel sources that are available with the Red Hat Enterprise Linux 7 releases. (BZ#1172844) * The MRG Realtime version of the e1000e driver has been updated to provide support for the Intel I218-LM network adapter. (BZ#1191767) * The MRG Realtime kernel was updated to provide support for the Mellanox Connect-IB (mlx5). (BZ#1171363) * The rt-firmware package has been updated to provide additional firmware files required by the new version of the Red Hat Enterprise MRG 2.5 kernel (BZ#1184251) All kernel-rt users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add these enhancements. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 81905
    published 2015-03-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81905
    title RHEL 6 : MRG (RHSA-2015:0694)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_KERNEL-150306.NASL
    description The SUSE Linux Enterprise 11 SP3 kernel has been updated to receive various security and bugfixes. New features enabled : - The Ceph and rbd remote network block device drivers are now enabled and supported, to serve as client for SUSE Enterprise Storage 1.0. (FATE#318328) - Support to selected Bay Trail CPUs used in Point of Service Hardware was enabled. (FATE#317933) - Broadwell Legacy Audio, HDMI Audio and DisplayPort Audio support (Audio Driver: HD-A HDMI/DP Audio/HDA Analog/DSP) was enabled. (FATE#317347) The following security bugs have been fixed : - An integer overflow in the stack randomization on 64-bit systems lead to less effective stack ASLR on those systems. (bsc#917839). (CVE-2015-1593) - iptables rules could be bypassed if the specific network protocol module was not loaded, allowing e.g. SCTP to bypass the firewall if the sctp protocol was not enabled. (bsc#913059). (CVE-2014-8160) - A flaw was found in the way the Linux kernels splice() system call validated its parameters. On certain file systems, a local, unprivileged user could have used this flaw to write past the maximum file size, and thus crash the system. (bnc#915322). (CVE-2014-7822) - The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel did not ensure that Thread Local Storage (TLS) descriptors are loaded before proceeding with other steps, which made it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address. (bnc#911326). (CVE-2014-9419) - The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel did not validate a length value in the Extensions Reference (ER) System Use Field, which allowed local users to obtain sensitive information from kernel memory via a crafted iso9660 image. (bnc#912654). (CVE-2014-9584) - The vdso_addr function in arch/x86/vdso/vma.c in the Linux kernel did not properly choose memory locations for the vDSO area, which made it easier for local users to bypass the ASLR protection mechanism by guessing a location at the end of a PMD. (bnc#912705). (CVE-2014-9585) - The d_walk function in fs/dcache.c in the Linux kernel did not properly maintain the semantics of rename_lock, which allowed local users to cause a denial of service (deadlock and system hang) via a crafted application. (bnc#903640). (CVE-2014-8559) - The rock_continue function in fs/isofs/rock.c in the Linux kernel did not restrict the number of Rock Ridge continuation entries, which allowed local users to cause a denial of service (infinite loop, and system crash or hang) via a crafted iso9660 image (bsc#911325). (CVE-2014-9420) - The paravirt_ops_setup function in arch/x86/kernel/kvm.c in the Linux kernel used an improper paravirt_enabled setting for KVM guest kernels, which made it easier for guest OS users to bypass the ASLR protection mechanism via a crafted application that reads a 16-bit value (bnc#907818 909077 909078). (CVE-2014-8134) - The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel miscalculated the number of pages during the handling of a mapping failure, which allowed guest OS users to cause a denial of service (host OS page unpinning) or possibly have unspecified other impact by leveraging guest OS privileges. NOTE: this vulnerability exists because of an incorrect fix for CVE-2014-3601 (bsc#902675). (CVE-2014-8369) - arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel on Intel processors did not ensure that the value in the CR4 control register remains the same after a VM entry, which allowed host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU. (bnc#902232). (CVE-2014-3690) - Race condition in arch/x86/kvm/x86.c in the Linux kernel allowed guest OS users to cause a denial of service (guest OS crash) via a crafted application that performs an MMIO transaction or a PIO transaction to trigger a guest userspace emulation error report, a similar issue to CVE-2010-5313. (bnc#905312). (CVE-2014-7842) - The Netlink implementation in the Linux kernel did not provide a mechanism for authorizing socket operations based on the opener of a socket, which allowed local users to bypass intended access restrictions and modify network configurations by using a Netlink socket for the (1) stdout or (2) stderr of a setuid program. (bnc#875051). (CVE-2014-0181) - The SCTP implementation in the Linux kernel allowed remote attackers to cause a denial of service (memory consumption) by triggering a large number of chunks in an associations output queue, as demonstrated by ASCONF probes, related to net/sctp/inqueue.c and net/sctp/sm_statefuns.c. (bnc#902351). (CVE-2014-3688) - The pivot_root implementation in fs/namespace.c in the Linux kernel did not properly interact with certain locations of a chroot directory, which allowed local users to cause a denial of service (mount-tree loop) via . (dot) values in both arguments to the pivot_root system call. (bnc#900644). (CVE-2014-7970) - The sctp_assoc_lookup_asconf_ack function in net/sctp/associola.c in the SCTP implementation in the Linux kernel allowed remote attackers to cause a denial of service (panic) via duplicate ASCONF chunks that trigger an incorrect uncork within the side-effect interpreter. (bnc#902349, bnc#904899). (CVE-2014-3687) The following non-security bugs have been fixed : - ACPI idle: permit sparse C-state sub-state numbers (bnc#908550,FATE#317933). - ALSA : hda - not use assigned converters for all unused pins (FATE#317933). - ALSA: hda - Add Device IDs for Intel Wildcat Point-LP PCH (FATE#317347). - ALSA: hda - Fix onboard audio on Intel H97/Z97 chipsets (FATE#317347). - ALSA: hda - add PCI IDs for Intel BayTrail (FATE#317347). - ALSA: hda - add PCI IDs for Intel Braswell (FATE#317347). - ALSA: hda - add codec ID for Braswell display audio codec (FATE#317933). - ALSA: hda - add codec ID for Broadwell display audio codec (FATE#317933). - ALSA: hda - add codec ID for Valleyview2 display codec (FATE#317933). - ALSA: hda - define is_haswell() to check if a display audio codec is Haswell (FATE#317933). - ALSA: hda - hdmi: Re-setup pin and infoframe on plug-in on all codecs (FATE#317933). - ALSA: hda - not choose assigned converters for unused pins of Valleyview (FATE#317933). - ALSA: hda - rename function not_share_unassigned_cvt() (FATE#317933). - ALSA: hda - unmute pin amplifier in infoframe setup for Haswell (FATE#317933). - ALSA: hda - verify pin:converter connection on unsol event for HSW and VLV (FATE#317933). - ALSA: hda - verify pin:cvt connection on preparing a stream for Intel HDMI codec (FATE#317933). - ALSA: hda/hdmi - apply Valleyview fix-ups to Cherryview display codec (FATE#317933). - ALSA: hda/hdmi - apply all Haswell fix-ups to Broadwell display codec (FATE#317933). - ALSA: hda_intel: Add Device IDs for Intel Sunrise Point PCH (FATE#317347). - ALSA: hda_intel: Add DeviceIDs for Sunrise Point-LP (FATE#317347). - Add support for AdvancedSilicon HID multitouch screen (2149:36b1) (FATE#317933). - Disable switching to bootsplash at oops/panic. (bnc#877593) - Do not trigger congestion wait on dirty-but-not-writeout pages (VM Performance, bnc#909093, bnc#910517). - Fix HDIO_DRIVE_* ioctl() regression. (bnc#833588, bnc#905799) - Fix Module.supported handling for external modules. (bnc#905304) - Fix zero freq if frequency is requested too quickly in a row. (bnc#908572) - Fix zero freq if frequency is requested too quickly in a row. (bnc#908572) - Fixup kABI after patches.fixes/writeback-do-not-sync-data-dirtied-after-s ync-start.patch. (bnc#833820) - Force native backlight for HP POS machines (bnc#908551,FATE#317933). - HID: use multi input quirk for 22b9:2968 (FATE#317933). - IPoIB: Use a private hash table for path lookup in xmit path (bsc#907196). - Import kabi files from kernel 3.0.101-0.40 - KEYS: Fix stale key registration at error path. (bnc#908163) - NFS: Add sequence_priviliged_ops for nfs4_proc_sequence(). (bnc#864401) - NFS: do not use STABLE writes during writeback. (bnc#816099) - NFSv4.1 handle DS stateid errors. (bnc#864401) - NFSv4.1: Do not decode skipped layoutgets. (bnc#864411) - NFSv4.1: Fix a race in the pNFS return-on-close code. (bnc#864409) - NFSv4.1: Fix an ABBA locking issue with session and state serialisation. (bnc#864409) - NFSv4.1: We must release the sequence id when we fail to get a session slot. (bnc#864401) - NFSv4: Do not accept delegated opens when a delegation recall is in effect. (bnc#864409) - NFSv4: Ensure correct locking when accessing the '^a' list. (bnc#864401) - NFSv4: Fix another reboot recovery race. (bnc#916982) - Preserve kabi checksum of path_is_under(). - Refresh patches.drivers/HID-multitouch-add-support-for-Atmel-212 c. Fix the non-working touchsreen. (bnc#909740) - Revert 'drm/i915: Calculate correct stolen size for GEN7+' (bnc#908550,FATE#317933). - SUNRPC: Do not allow low priority tasks to pre-empt higher priority ones. (bnc#864401) - SUNRPC: When changing the queue priority, ensure that we change the owner. (bnc#864401) - Setting rbd and libceph as supported drivers (bsc#917884) - audit: efficiency fix 1: only wake up if queue shorter than backlog limit. (bnc#908393) - audit: efficiency fix 2: request exclusive wait since all need same resource. (bnc#908393) - audit: fix endless wait in audit_log_start(). (bnc#908393) - audit: make use of remaining sleep time from wait_for_auditd. (bnc#908393) - audit: refactor hold queue flush. (bnc#908393) - audit: reset audit backlog wait time after error recovery. (bnc#908393) - audit: wait_for_auditd() should use TASK_UNINTERRUPTIBLE. (bnc#908393) - block: rbd: use NULL instead of 0 (FATE#318328 bsc#917884). - block: replace strict_strtoul() with kstrtoul() (FATE#318328 bsc#917884). - bonding: propagate LRO disabling down to slaves. (bnc#829110 / bnc#891277 / bnc#904053) - cciss: fix broken mutex usage in ioctl. (bnc#910013) - ceph: Add necessary clean up if invalid reply received in handle_reply() (FATE#318328 bsc#917884). - ceph: remove bogus extern (FATE#318328 bsc#917884). - config: Disable CONFIG_RCU_FAST_NO_HZ (bnc#884817) This option has been verified to be racy vs hotplug, and is irrelevant to SLE in any case. - coredump: ensure the fpu state is flushed for proper multi-threaded core dump. (bnc#904671) - crush: CHOOSE_LEAF -> CHOOSELEAF throughout (FATE#318328 bsc#917884). - crush: add SET_CHOOSE_TRIES rule step (FATE#318328 bsc#917884). - crush: add note about r in recursive choose (FATE#318328 bsc#917884). - crush: add set_choose_local_[fallback_]tries steps (FATE#318328 bsc#917884). - crush: apply chooseleaf_tries to firstn mode too (FATE#318328 bsc#917884). - crush: attempts -> tries (FATE#318328 bsc#917884). - crush: clarify numrep vs endpos (FATE#318328 bsc#917884). - crush: eliminate CRUSH_MAX_SET result size limitation (FATE#318328 bsc#917884). - crush: factor out (trivial) crush_destroy_rule() (FATE#318328 bsc#917884). - crush: fix crush_choose_firstn comment (FATE#318328 bsc#917884). - crush: fix some comments (FATE#318328 bsc#917884). - crush: generalize descend_once (FATE#318328 bsc#917884). - crush: new SET_CHOOSE_LEAF_TRIES command (FATE#318328 bsc#917884). - crush: pass parent r value for indep call (FATE#318328 bsc#917884). - crush: pass weight vector size to map function (FATE#318328 bsc#917884). - crush: reduce scope of some local variables (FATE#318328 bsc#917884). - crush: return CRUSH_ITEM_UNDEF for failed placements with indep (FATE#318328 bsc#917884). - crush: strip firstn conditionals out of crush_choose, rename (FATE#318328 bsc#917884). - crush: use breadth-first search for indep mode (FATE#318328 bsc#917884). - crypto: add missing crypto module aliases (bsc#914423). - crypto: include crypto- module prefix in template (bsc#914423). - crypto: kernel oops at insmod of the z90crypt device driver (bnc#909088, LTC#119591). - crypto: prefix module autoloading with 'crypto-' (bsc#914423). - dm raid: add region_size parameter. (bnc#895841) - do not do blind d_drop() in nfs_prime_dcache(). (bnc#908069 / bnc#896484) - drm/cirrus: Fix cirrus drm driver for fbdev + qemu (bsc#909846,bnc#856760). - drm/i915: split PCI IDs out into i915_drm.h v4 (bnc#908550,FATE#317933). - fix dcache exit scaling. (bnc#876594) - infiniband: ipoib: Sanitize neighbour handling in ipoib_main.c (bsc#907196). - iommu/vt-d: Fix an off-by-one bug in __domain_mapping() (bsc#908825). - ipoib: Convert over to dev_lookup_neigh_skb() (bsc#907196). - ipoib: Need to do dst_neigh_lookup_skb() outside of priv->lock (bsc#907196). - ipv6: fix net reference leak in IPv6 conntrack reassembly. (bnc#865419) - isofs: Fix unchecked printing of ER records. - kABI: protect console include in consolemap. - kabi fix. (bnc#864404) - kabi, mm: prevent endless growth of anon_vma hierarchy. (bnc#904242) - kernel/audit.c: avoid negative sleep durations. (bnc#908393) - kernel: 3215 tty close crash (bnc#915209, LTC#120873). - kernel: incorrect clock_gettime result (bnc#915209, LTC#121184). - kvm: Do not expose MONITOR cpuid as available. (bnc#887597) - kvm: iommu: Add cond_resched to legacy device assignment code. (bnc#910159) - libceph: CEPH_OSD_FLAG_* enum update (FATE#318328 bsc#917884). - libceph: add ceph_kv{malloc,free}() and switch to them (FATE#318328 bsc#917884). - libceph: add ceph_pg_pool_by_id() (FATE#318328 bsc#917884). - libceph: add function to ensure notifies are complete (FATE#318328 bsc#917884). - libceph: add process_one_ticket() helper (FATE#318328 bsc#917884). - libceph: all features fields must be u64 (FATE#318328 bsc#917884). - libceph: block I/O when PAUSE or FULL osd map flags are set (FATE#318328 bsc#917884). - libceph: call r_unsafe_callback when unsafe reply is received (FATE#318328 bsc#917884). - libceph: create_singlethread_workqueue() does not return ERR_PTRs (FATE#318328 bsc#917884). - libceph: do not hard code max auth ticket len (FATE#318328 bsc#917884). - libceph: dout() is missing a newline (FATE#318328 bsc#917884). - libceph: factor out logic from ceph_osdc_start_request() (FATE#318328 bsc#917884). - libceph: fix error handling in ceph_osdc_init() (FATE#318328 bsc#917884). - libceph: fix preallocation check in get_reply() (FATE#318328 bsc#917884). - libceph: fix safe completion (FATE#318328 bsc#917884). - libceph: follow redirect replies from osds (FATE#318328 bsc#917884). - libceph: follow {read,write}_tier fields on osd request submission (FATE#318328 bsc#917884). - libceph: gracefully handle large reply messages from the mon (FATE#318328 bsc#917884). - libceph: introduce and start using oid abstraction (FATE#318328 bsc#917884). - libceph: rename MAX_OBJ_NAME_SIZE to CEPH_MAX_OID_NAME_LEN (FATE#318328 bsc#917884). - libceph: rename ceph_msg::front_max to front_alloc_len (FATE#318328 bsc#917884). - libceph: rename ceph_osd_request::r_{oloc,oid} to r_base_{oloc,oid} (FATE#318328 bsc#917884). - libceph: rename front to front_len in get_reply() (FATE#318328 bsc#917884). - libceph: replace ceph_calc_ceph_pg() with ceph_oloc_oid_to_pg() (FATE#318328 bsc#917884). - libceph: resend all writes after the osdmap loses the full flag (FATE#318328 bsc#917884). - libceph: start using oloc abstraction (FATE#318328 bsc#917884). - libceph: take map_sem for read in handle_reply() (FATE#318328 bsc#917884). - libceph: update ceph_features.h (FATE#318328 bsc#917884). - libceph: use CEPH_MON_PORT when the specified port is 0 (FATE#318328 bsc#917884). - libiscsi: Added new boot entries in the session sysfs (FATE#316723 bsc#914355) - mei: ME hardware reset needs to be synchronized. (bnc#876086) - mei: add 9 series PCH mei device ids. (bnc#876086) - mei: add hw start callback. (bnc#876086) - mei: cancel stall timers in mei_reset. (bnc#876086) - mei: do not have to clean the state on power up. (bnc#876086) - mei: limit the number of consecutive resets. (bnc#876086) - mei: me: add Lynx Point Wellsburg work station device id. (bnc#876086) - mei: me: clear interrupts on the resume path. (bnc#876086) - mei: me: do not load the driver if the FW does not support MEI interface. (bnc#876086) - mei: me: fix hardware reset flow. (bnc#876086) - mei: me: read H_CSR after asserting reset. (bnc#876086) - mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed (VM Functionality bnc#910150). - mm: fix BUG in __split_huge_page_pmd. (bnc#906586) - mm: fix corner case in anon_vma endless growing prevention. (bnc#904242) - mm: prevent endless growth of anon_vma hierarchy. (bnc#904242) - mm: vmscan: count only dirty pages as congested (VM Performance, bnc#910517). - net, sunrpc: suppress allocation warning in rpc_malloc(). (bnc#904659) - net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function prototypes (FATE#318328 bsc#917884). - net: handle more general stacking in dev_disable_lro(). (bnc#829110 / bnc#891277 / bnc#904053) - netfilter: do not drop packet on insert collision. (bnc#907611) - nf_conntrack: avoid reference leak in __ipv6_conntrack_in(). (bnc#865419) - nfs_prime_dcache needs fh to be set. (bnc#908069 / bnc#896484) - nfsd: fix EXDEV checking in rename. (bnc#915791) - pnfs: defer release of pages in layoutget. (bnc#864411) - proc_sys_revalidate: fix Oops on NULL nameidata. (bnc#907551) - qlge: fix an '&&' vs '||' bug (bsc#912171). - rbd: Fix error recovery in rbd_obj_read_sync() (FATE#318328 bsc#917884). - rbd: Use min_t() to fix comparison of distinct pointer types warning (FATE#318328 bsc#917884). - rbd: add 'minor' sysfs rbd device attribute (FATE#318328 bsc#917884). - rbd: add support for single-major device number allocation scheme (FATE#318328 bsc#917884). - rbd: clean up a few things in the refresh path (FATE#318328 bsc#917884). - rbd: complete notifies before cleaning up osd_client and rbd_dev (FATE#318328 bsc#917884). - rbd: do not destroy ceph_opts in rbd_add() (FATE#318328 bsc#917884). - rbd: do not hold ctl_mutex to get/put device (FATE#318328 bsc#917884). - rbd: drop an unsafe assertion (FATE#318328 bsc#917884). - rbd: drop original request earlier for existence check (FATE#318328 bsc#917884). - rbd: enable extended devt in single-major mode (FATE#318328 bsc#917884). - rbd: fetch object order before using it (FATE#318328 bsc#917884). - rbd: fix I/O error propagation for reads (FATE#318328 bsc#917884). - rbd: fix a couple warnings (FATE#318328 bsc#917884). - rbd: fix buffer size for writes to images with snapshots (FATE#318328 bsc#917884). - rbd: fix cleanup in rbd_add() (FATE#318328 bsc#917884). - rbd: fix error handling from rbd_snap_name() (FATE#318328 bsc#917884). - rbd: fix error paths in rbd_img_request_fill() (FATE#318328 bsc#917884). - rbd: fix null dereference in dout (FATE#318328 bsc#917884). - rbd: fix use-after free of rbd_dev->disk (FATE#318328 bsc#917884). - rbd: flush dcache after zeroing page data (FATE#318328 bsc#917884). - rbd: ignore unmapped snapshots that no longer exist (FATE#318328 bsc#917884). - rbd: introduce rbd_dev_header_unwatch_sync() and switch to it (FATE#318328 bsc#917884). - rbd: make rbd_obj_notify_ack() synchronous (FATE#318328 bsc#917884). - rbd: protect against concurrent unmaps (FATE#318328 bsc#917884). - rbd: protect against duplicate client creation (FATE#318328 bsc#917884). - rbd: rbd_device::dev_id is an int, format it as such (FATE#318328 bsc#917884). - rbd: refactor rbd_init() a bit (FATE#318328 bsc#917884). - rbd: send snapshot context with writes (FATE#318328 bsc#917884). - rbd: set removing flag while holding list lock (FATE#318328 bsc#917884). - rbd: switch to ida for rbd id assignments (FATE#318328 bsc#917884). - rbd: take a little credit (FATE#318328 bsc#917884). - rbd: tear down watch request if rbd_dev_device_setup() fails (FATE#318328 bsc#917884). - rbd: tweak 'loaded' message and module description (FATE#318328 bsc#917884). - rbd: use reference counts for image requests (FATE#318328 bsc#917884). - rbd: use rwsem to protect header updates (FATE#318328 bsc#917884). - rbd: use the correct length for format 2 object names (FATE#318328 bsc#917884). - rpm/kernel-binary.spec.in: Own the modules directory in the devel package. (bnc#910322) - scsi_dh_alua: add missing hunk in alua_set_params(). (bnc#846656) - scsifront: avoid acquiring same lock twice if ring is full. - sd: medium access timeout counter fails to reset. (bnc#894213) - storvsc: ring buffer failures may result in I/O freeze - swap: fix shmem swapping when more than 8 areas. (bnc#903096) - timekeeping: Avoid possible deadlock from clock_was_set_delayed (bsc#771619). - tty: Fix memory leak in virtual console when enable unicode translation. (bnc#916515) - udf: Check component length before reading it. - udf: Check path length when reading symlink. - udf: Verify i_size when loading inode. - udf: Verify symlink size before loading it. - udp: Add MIB counters for rcvbuferrors. (bnc#909565) - usb: xhci: rework root port wake bits if controller is not allowed to wakeup (bsc#909264). - virtio_net: drop dst reference before transmitting a packet. (bnc#882470) - vt: push the tty_lock down into the map handling. (bnc#915826) - workqueue: Make rescuer thread process more works. (bnc#900279) - x86, xsave: remove thread_has_fpu() bug check in __sanitize_i387_state(). (bnc#904671) - x86-64/MCE: flip CPU and bank numbers in log message. - x86/UV: Fix NULL pointer dereference in uv_flush_tlb_others() if the '^a' boot option is used (bsc#909092). - x86/UV: Fix conditional in gru_exit() (bsc#909095). - x86/early quirk: use gen6 stolen detection for VLV (bnc#908550,FATE#317933). - x86/gpu: Print the Intel graphics stolen memory range. (bnc#908550) - x86/hpet: Make boot_hpet_disable extern (bnc#908550,FATE#317933). - x86/intel: Add quirk to disable HPET for the Baytrail platform (bnc#908550,FATE#317933). - x86/uv: Fix UV2 BAU legacy mode (bsc#909092). - x86/uv: Fix the UV BAU destination timeout period (bsc#909092). - x86/uv: Implement UV BAU runtime enable and disable control via /proc/sgi_uv/ (bsc#909092). - x86/uv: Update the UV3 TLB shootdown logic (bsc#909092). - x86/uv: Work around UV2 BAU hangs (bsc#909092). - x86: UV BAU: Avoid NULL pointer reference in ptc_seq_show (bsc#911181). - x86: UV BAU: Increase maximum CPUs per socket/hub (bsc#911181). - x86: add early quirk for reserving Intel graphics stolen memory v5 (bnc#908550,FATE#317933). - x86: irq: Check for valid irq descriptor in check_irq_vectors_for_cpu_disable. (bnc#914726) - xen-privcmd-hcall-preemption: Fix EFLAGS.IF access. - xfs: re-enable non-blocking behaviour in xfs_map_blocks. (bnc#900279) - xfs: recheck buffer pinned status after push trylock failure. (bnc#907338) - xfs: remove log force from xfs_buf_trylock(). (bnc#907338) - xhci: fix incorrect type in assignment in handle_device_notification() (bsc#910321). - zcrypt: Number of supported ap domains is not retrievable (bnc#915209, LTC#120788).
    last seen 2019-02-21
    modified 2015-03-24
    plugin id 82020
    published 2015-03-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=82020
    title SuSE 11.3 Security Update : Linux Kernel (SAT Patch Numbers 10412 / 10415 / 10416)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-0102.NASL
    description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's SCTP implementation validated INIT chunks when performing Address Configuration Change (ASCONF). A remote attacker could use this flaw to crash the system by sending a specially crafted SCTP packet to trigger a NULL pointer dereference on the system. (CVE-2014-7841, Important) * A race condition flaw was found in the way the Linux kernel's mmap(2), madvise(2), and fallocate(2) system calls interacted with each other while operating on virtual memory file system files. A local user could use this flaw to cause a denial of service. (CVE-2014-4171, Moderate) * A NULL pointer dereference flaw was found in the way the Linux kernel's Common Internet File System (CIFS) implementation handled mounting of file system shares. A remote attacker could use this flaw to crash a client system that would mount a file system share from a malicious server. (CVE-2014-7145, Moderate) * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) * It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-5471, CVE-2014-5472, Low) Red Hat would like to thank Akira Fujita of NEC for reporting the CVE-2014-7822 issue. The CVE-2014-7841 issue was discovered by Liu Wei of Red Hat. This update also fixes the following bugs : * Previously, a kernel panic could occur if a process reading from a locked NFS file was killed and the lock was not released properly before the read operations finished. Consequently, the system crashed. The code handling file locks has been fixed, and instead of halting, the system now emits a warning about the unreleased lock. (BZ#1172266) * A race condition in the command abort handling logic of the ipr device driver could cause the kernel to panic when the driver received a response to an abort command prior to receiving other responses to the aborted command due to the support for multiple interrupts. With this update, the abort handler waits for the aborted command's responses first before completing an abort operation. (BZ#1162734) * Previously, a race condition could occur when changing a Page Table Entry (PTE) or a Page Middle Directory (PMD) to 'pte_numa' or 'pmd_numa', respectively, causing the kernel to crash. This update removes the BUG_ON() macro from the __handle_mm_fault() function, preventing the kernel panic in the aforementioned scenario. (BZ#1170662) All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 81070
    published 2015-01-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81070
    title RHEL 7 : kernel (RHSA-2015:0102)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2015-0102.NASL
    description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's SCTP implementation validated INIT chunks when performing Address Configuration Change (ASCONF). A remote attacker could use this flaw to crash the system by sending a specially crafted SCTP packet to trigger a NULL pointer dereference on the system. (CVE-2014-7841, Important) * A race condition flaw was found in the way the Linux kernel's mmap(2), madvise(2), and fallocate(2) system calls interacted with each other while operating on virtual memory file system files. A local user could use this flaw to cause a denial of service. (CVE-2014-4171, Moderate) * A NULL pointer dereference flaw was found in the way the Linux kernel's Common Internet File System (CIFS) implementation handled mounting of file system shares. A remote attacker could use this flaw to crash a client system that would mount a file system share from a malicious server. (CVE-2014-7145, Moderate) * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) * It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-5471, CVE-2014-5472, Low) Red Hat would like to thank Akira Fujita of NEC for reporting the CVE-2014-7822 issue. The CVE-2014-7841 issue was discovered by Liu Wei of Red Hat. This update also fixes the following bugs : * Previously, a kernel panic could occur if a process reading from a locked NFS file was killed and the lock was not released properly before the read operations finished. Consequently, the system crashed. The code handling file locks has been fixed, and instead of halting, the system now emits a warning about the unreleased lock. (BZ#1172266) * A race condition in the command abort handling logic of the ipr device driver could cause the kernel to panic when the driver received a response to an abort command prior to receiving other responses to the aborted command due to the support for multiple interrupts. With this update, the abort handler waits for the aborted command's responses first before completing an abort operation. (BZ#1162734) * Previously, a race condition could occur when changing a Page Table Entry (PTE) or a Page Middle Directory (PMD) to 'pte_numa' or 'pmd_numa', respectively, causing the kernel to crash. This update removes the BUG_ON() macro from the __handle_mm_fault() function, preventing the kernel panic in the aforementioned scenario. (BZ#1170662) All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 81089
    published 2015-01-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81089
    title CentOS 7 : kernel (CESA-2015:0102)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-155.NASL
    description This update fixes the CVEs described below. A further issue, CVE-2014-9419, was considered, but appears to require extensive changes with a consequent high risk of regression. It is now unlikely to be fixed in squeeze-lts. CVE-2013-6885 It was discovered that under specific circumstances, a combination of write operations to write-combined memory and locked CPU instructions may cause a core hang on AMD 16h 00h through 0Fh processors. A local user can use this flaw to mount a denial of service (system hang) via a crafted application. For more information please refer to the AMD CPU erratum 793 in http://support.amd.com/TechDocs/51810_16h_00h-0Fh_Rev_Guide. pdf CVE-2014-7822 It was found that the splice() system call did not validate the given file offset and length. A local unprivileged user can use this flaw to cause filesystem corruption on ext4 filesystems, or possibly other effects. CVE-2014-8133 It was found that the espfix functionality can be bypassed by installing a 16-bit RW data segment into GDT instead of LDT (which espfix checks for) and using it for stack. A local unprivileged user could potentially use this flaw to leak kernel stack addresses. CVE-2014-8134 It was found that the espfix functionality is wrongly disabled in a 32-bit KVM guest. A local unprivileged user could potentially use this flaw to leak kernel stack addresses. CVE-2014-8160 It was found that a netfilter (iptables or ip6tables) rule accepting packets to a specific SCTP, DCCP, GRE or UDPlite port/endpoint could result in incorrect connection tracking state. If only the generic connection tracking module (nf_conntrack) was loaded, and not the protocol-specific connection tracking module, this would allow access to any port/endpoint of the specified protocol. CVE-2014-9420 It was found that the ISO-9660 filesystem implementation (isofs) follows arbitrarily long chains, including loops, of Continuation Entries (CEs). This allows local users to mount a denial of service via a crafted disc image. CVE-2014-9584 It was found that the ISO-9660 filesystem implementation (isofs) does not validate a length value in the Extensions Reference (ER) System Use Field, which allows local users to obtain sensitive information from kernel memory via a crafted disc image. CVE-2014-9585 It was discovered that address randomisation for the vDSO in 64-bit processes is extremely biassed. A local unprivileged user could potentially use this flaw to bypass the ASLR protection mechanism. CVE-2015-1421 It was found that the SCTP implementation could free authentication state while it was still in use, resulting in heap corruption. This could allow remote users to cause a denial of service or privilege escalation. CVE-2015-1593 It was found that address randomisation for the initial stack in 64-bit processes was limited to 20 rather than 22 bits of entropy. A local unprivileged user could potentially use this flaw to bypass the ASLR protection mechanism. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-18
    plugin id 82138
    published 2015-03-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=82138
    title Debian DLA-155-1 : linux-2.6 security update
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20150311_KERNEL_ON_SL6_X.NASL
    description - It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the (u)verbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-8159, Important) - A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) - A flaw was found in the way the Linux kernel's netfilter subsystem handled generic protocol tracking. As demonstrated in the Stream Control Transmission Protocol (SCTP) case, a remote attacker could use this flaw to bypass intended iptables rule restrictions when the associated connection tracking module was not loaded on the system. (CVE-2014-8160, Moderate) - It was found that the fix for CVE-2014-3601 was incomplete: the Linux kernel's kvm_iommu_map_pages() function still handled IOMMU mapping failures incorrectly. A privileged user in a guest with an assigned host device could use this flaw to crash the host. (CVE-2014-8369, Moderate) Bug fixes : - The maximum amount of entries in the IPv6 route table (net.ipv6.route.max_size) was 4096, and every route towards this maximum size limit was counted. Communication to more systems was impossible when the limit was exceeded. Now, only cached routes are counted, which guarantees that the kernel does not run out of memory, but the user can now install as many routes as the memory allows until the kernel indicates it can no longer handle the amount of memory and returns an error message. In addition, the default 'net.ipv6.route.max_size' value has been increased to 16384 for performance improvement reasons. - When the user attempted to scan for an FCOE-served Logical Unit Number (LUN), after an initial LUN scan, a kernel panic occurred in bnx2fc_init_task. System scanning for LUNs is now stable after LUNs have been added. - Under certain conditions, such as when attempting to scan the network for LUNs, a race condition in the bnx2fc driver could trigger a kernel panic in bnx2fc_init_task. A patch fixing a locking issue that caused the race condition has been applied, and scanning the network for LUNs no longer leads to a kernel panic. - Previously, it was not possible to boot the kernel on Xen hypervisor in PVHVM mode if more than 32 vCPUs were specified in the guest configuration. Support for more than 32 vCPUs has been added, and the kernel now boots successfully in the described situation. - When the NVMe driver allocated a namespace queue, it indicated that it was a request-based driver when it was actually a block I/O-based driver. Consequently, when NVMe driver was loaded along with a request-based dm device, the system could terminate unexpectedly or become unresponsive when attempting to access data. The NVMe driver no longer sets the QUEUE_FLAG_STACKABLE bit when allocating a namespace queue and device- mapper no longer perceives NVMe driver as request-based; system hangs or crashes no longer occur. - If a user attempted to apply an NVRAM firmware update when running the tg3 module provided with Scientific Linux 6.6 kernels, the update could fail. As a consequence, the Network Interface Card (NIC) could stay in an unusable state and this could prevent the entire system from booting. The tg3 module has been updated to correctly apply firmware updates. - Support for key sizes of 256 and 192 bits has been added to AES-NI.
    last seen 2019-02-21
    modified 2018-12-28
    plugin id 81809
    published 2015-03-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81809
    title Scientific Linux Security Update : kernel on SL6.x i386/x86_64
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-3170.NASL
    description Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, information leaks or privilege escalation. - CVE-2013-7421 / CVE-2014-9644 It was discovered that the Crypto API allowed unprivileged users to load arbitrary kernel modules. A local user can use this flaw to exploit vulnerabilities in modules that would not normally be loaded. - CVE-2014-7822 Akira Fujita found that the splice() system call did not validate the given file offset and length. A local unprivileged user can use this flaw to cause filesystem corruption on ext4 filesystems, or possibly other effects. - CVE-2014-8160 Florian Westphal discovered that a netfilter (iptables/ip6tables) rule accepting packets to a specific SCTP, DCCP, GRE or UDPlite port/endpoint could result in incorrect connection tracking state. If only the generic connection tracking module (nf_conntrack) was loaded, and not the protocol-specific connection tracking module, this would allow access to any port/endpoint of the specified protocol. - CVE-2014-8559 It was found that kernel functions that iterate over a directory tree can dead-lock or live-lock in case some of the directory entries were recently deleted or dropped from the cache. A local unprivileged user can use this flaw for denial of service. - CVE-2014-9585 Andy Lutomirski discovered that address randomisation for the vDSO in 64-bit processes is extremely biased. A local unprivileged user could potentially use this flaw to bypass the ASLR protection mechanism. - CVE-2014-9683 Dmitry Chernenkov discovered that eCryptfs writes past the end of the allocated buffer during encrypted filename decoding, resulting in local denial of service. - CVE-2015-0239 It was found that KVM did not correctly emulate the x86 SYSENTER instruction. An unprivileged user within a guest system that has not enabled SYSENTER, for example because the emulated CPU vendor is AMD, could potentially use this flaw to cause a denial of service or privilege escalation in that guest. - CVE-2015-1420 It was discovered that the open_by_handle_at() system call reads the handle size from user memory a second time after validating it. A local user with the CAP_DAC_READ_SEARCH capability could use this flaw for privilege escalation. - CVE-2015-1421 It was found that the SCTP implementation could free an authentication state while it was still in use, resulting in heap corruption. This could allow remote users to cause a denial of service or privilege escalation. - CVE-2015-1593 It was found that address randomisation for the initial stack in 64-bit processes was limited to 20 rather than 22 bits of entropy. A local unprivileged user could potentially use this flaw to bypass the ASLR protection mechanism.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 81449
    published 2015-02-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81449
    title Debian DSA-3170-1 : linux - security update
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-0674.NASL
    description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the (u)verbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-8159, Important) * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) * A flaw was found in the way the Linux kernel's netfilter subsystem handled generic protocol tracking. As demonstrated in the Stream Control Transmission Protocol (SCTP) case, a remote attacker could use this flaw to bypass intended iptables rule restrictions when the associated connection tracking module was not loaded on the system. (CVE-2014-8160, Moderate) * It was found that the fix for CVE-2014-3601 was incomplete: the Linux kernel's kvm_iommu_map_pages() function still handled IOMMU mapping failures incorrectly. A privileged user in a guest with an assigned host device could use this flaw to crash the host. (CVE-2014-8369, Moderate) Red Hat would like to thank Mellanox for reporting CVE-2014-8159, and Akira Fujita of NEC for reporting CVE-2014-7822. Bug fixes : * The maximum amount of entries in the IPv6 route table (net.ipv6.route.max_size) was 4096, and every route towards this maximum size limit was counted. Communication to more systems was impossible when the limit was exceeded. Now, only cached routes are counted, which guarantees that the kernel does not run out of memory, but the user can now install as many routes as the memory allows until the kernel indicates it can no longer handle the amount of memory and returns an error message. In addition, the default 'net.ipv6.route.max_size' value has been increased to 16384 for performance improvement reasons. (BZ#1177581) * When the user attempted to scan for an FCOE-served Logical Unit Number (LUN), after an initial LUN scan, a kernel panic occurred in bnx2fc_init_task. System scanning for LUNs is now stable after LUNs have been added. (BZ#1179098) * Under certain conditions, such as when attempting to scan the network for LUNs, a race condition in the bnx2fc driver could trigger a kernel panic in bnx2fc_init_task. A patch fixing a locking issue that caused the race condition has been applied, and scanning the network for LUNs no longer leads to a kernel panic. (BZ#1179098) * Previously, it was not possible to boot the kernel on Xen hypervisor in PVHVM mode if more than 32 vCPUs were specified in the guest configuration. Support for more than 32 vCPUs has been added, and the kernel now boots successfully in the described situation. (BZ#1179343) * When the NVMe driver allocated a namespace queue, it indicated that it was a request-based driver when it was actually a block I/O-based driver. Consequently, when NVMe driver was loaded along with a request-based dm device, the system could terminate unexpectedly or become unresponsive when attempting to access data. The NVMe driver no longer sets the QUEUE_FLAG_STACKABLE bit when allocating a namespace queue and device-mapper no longer perceives NVMe driver as request-based; system hangs or crashes no longer occur. (BZ#1180555) * If a user attempted to apply an NVRAM firmware update when running the tg3 module provided with Red Hat Enterprise Linux 6.6 kernels, the update could fail. As a consequence, the Network Interface Card (NIC) could stay in an unusable state and this could prevent the entire system from booting. The tg3 module has been updated to correctly apply firmware updates. (BZ#1182903) * Support for key sizes of 256 and 192 bits has been added to AES-NI. (BZ#1184332)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 81769
    published 2015-03-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81769
    title RHEL 6 : kernel (RHSA-2015:0674)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2015-301.NASL
    description The Linux kernel was updated to fix various bugs and security issues. Following security issues were fixed : - CVE-2014-8173: A NULL pointer dereference flaw was found in the way the Linux kernels madvise MADV_WILLNEED functionality handled page table locking. A local, unprivileged user could have used this flaw to crash the system. - CVE-2015-1593: A integer overflow reduced the effectiveness of the stack randomization on 64-bit systems. - CVE-2014-7822: A flaw was found in the way the Linux kernels splice() system call validated its parameters. On certain file systems, a local, unprivileged user could have used this flaw to write past the maximum file size, and thus crash the system. - CVE-2014-9419: The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel did not ensure that Thread Local Storage (TLS) descriptors are loaded before proceeding with other steps, which made it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address. - CVE-2014-8134: The paravirt_ops_setup function in arch/x86/kernel/kvm.c in the Linux kernel used an improper paravirt_enabled setting for KVM guest kernels, which made it easier for guest OS users to bypass the ASLR protection mechanism via a crafted application that reads a 16-bit value. - CVE-2014-8160: net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel generated incorrect conntrack entries during handling of certain iptables rule sets for the SCTP, DCCP, GRE, and UDP-Lite protocols, which allowed remote attackers to bypass intended access restrictions via packets with disallowed port numbers. - CVE-2014-9529: Race condition in the key_gc_unused_keys function in security/keys/gc.c in the Linux kernel allowed local users to cause a denial of service (memory corruption or panic) or possibly have unspecified other impact via keyctl commands that trigger access to a key structure member during garbage collection of a key. - CVE-2014-8559: The d_walk function in fs/dcache.c in the Linux kernel through did not properly maintain the semantics of rename_lock, which allowed local users to cause a denial of service (deadlock and system hang) via a crafted application. - CVE-2014-9420: The rock_continue function in fs/isofs/rock.c in the Linux kernel did not restrict the number of Rock Ridge continuation entries, which allowed local users to cause a denial of service (infinite loop, and system crash or hang) via a crafted iso9660 image. - CVE-2014-9584: The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel did not validate a length value in the Extensions Reference (ER) System Use Field, which allowed local users to obtain sensitive information from kernel memory via a crafted iso9660 image. - CVE-2014-9585: The vdso_addr function in arch/x86/vdso/vma.c in the Linux kernel did not properly choose memory locations for the vDSO area, which made it easier for local users to bypass the ASLR protection mechanism by guessing a location at the end of a PMD. Following bugs were fixed : - HID: usbhid: enable always-poll quirk for Elan Touchscreen 0103 (bnc#920901). - HID: usbhid: enable always-poll quirk for Elan Touchscreen 016f (bnc#920901). - HID: usbhid: enable always-poll quirk for Elan Touchscreen 009b (bnc#920901). - HID: usbhid: add another mouse that needs QUIRK_ALWAYS_POLL (bnc#920901). - HID: usbhid: fix PIXART optical mouse (bnc#920901). - HID: usbhid: enable always-poll quirk for Elan Touchscreen (bnc#920901). - HID: usbhid: add always-poll quirk (bnc#920901). - storvsc: ring buffer failures may result in I/O freeze (bnc#914175). - mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed (VM Functionality bnc#910150). - Input: evdev - fix EVIOCG{type} ioctl (bnc#904899). - mnt: Implicitly add MNT_NODEV on remount when it was implicitly added by mount (bsc#907988). - DocBook: Do not exceed argument list limit. - DocBook: Make mandocs parallel-safe. - mm: free compound page with correct order (bnc#913695). - udf: Check component length before reading it. - udf: Check path length when reading symlink. - udf: Verify symlink size before loading it. - udf: Verify i_size when loading inode. - xfs: remote attribute overwrite causes transaction overrun.
    last seen 2019-02-21
    modified 2015-04-14
    plugin id 82755
    published 2015-04-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=82755
    title openSUSE Security Update : the Linux Kernel (openSUSE-2015-301)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2015-0147.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2015-0147 for details.
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 86882
    published 2015-11-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86882
    title OracleVM 3.3 : kernel-uek (OVMSA-2015-0147)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2541-1.NASL
    description The Linux kernel's splice system call did not correctly validate its parameters. A local, unprivileged user could exploit this flaw to cause a denial of service (system crash). (CVE-2014-7822) A flaw was discovered in how Thread Local Storage (TLS) is handled by the task switching function in the Linux kernel for x86_64 based machines. A local user could exploit this flaw to bypass the Address Space Layout Radomization (ASLR) protection mechanism. (CVE-2014-9419) Dmitry Chernenkov discovered a buffer overflow in eCryptfs' encrypted file name decoding. A local unprivileged user could exploit this flaw to cause a denial of service (system crash) or potentially gain administrative privileges. (CVE-2014-9683) Sun Baoliang discovered a use after free flaw in the Linux kernel's SCTP (Stream Control Transmission Protocol) subsystem during INIT collisions. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges on the system. (CVE-2015-1421). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 82069
    published 2015-03-25
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=82069
    title Ubuntu 12.04 LTS : linux vulnerabilities (USN-2541-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2015-0529-1.NASL
    description The SUSE Linux Enterprise 12 kernel was updated to 3.12.38 to receive various security and bugfixes. This update contains the following feature enablements : - The remote block device (rbd) and ceph drivers have been enabled and are now supported. (FATE#318350) These can be used e.g. for accessing the SUSE Enterprise Storage product services. - Support for Intel Select Bay trail CPUs has been added. (FATE#316038) Following security issues were fixed : - CVE-2014-9419: The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel through 3.18.1 did not ensure that Thread Local Storage (TLS) descriptors were loaded before proceeding with other steps, which made it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address (bnc#911326). - CVE-2014-7822: A flaw was found in the way the Linux kernels splice() system call validated its parameters. On certain file systems, a local, unprivileged user could have used this flaw to write past the maximum file size, and thus crash the system. - CVE-2014-8160: The connection tracking module could be bypassed if a specific protocol module was not loaded, e.g. allowing SCTP traffic while the firewall should have filtered it. - CVE-2014-9584: The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel before 3.18.2 did not validate a length value in the Extensions Reference (ER) System Use Field, which allowed local users to obtain sensitive information from kernel memory via a crafted iso9660 image (bnc#912654). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-29
    plugin id 83702
    published 2015-05-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=83702
    title SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2015:0529-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2544-1.NASL
    description Eric Windisch discovered flaw in how the Linux kernel's XFS file system replaces remote attributes. A local access with access to an XFS file system could exploit this flaw to escalate their privileges. (CVE-2015-0274) A flaw was discovered in the automatic loading of modules in the crypto subsystem of the Linux kernel. A local user could exploit this flaw to load installed kernel modules, increasing the attack surface and potentially using this to gain administrative privileges. (CVE-2013-7421) The Linux kernel's splice system call did not correctly validate its parameters. A local, unprivileged user could exploit this flaw to cause a denial of service (system crash). (CVE-2014-7822) A flaw was discovered in the crypto subsystem when screening module names for automatic module loading if the name contained a valid crypto module name, eg. vfat(aes). A local user could exploit this flaw to load installed kernel modules, increasing the attack surface and potentially using this to gain administrative privileges. (CVE-2014-9644). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 82071
    published 2015-03-25
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=82071
    title Ubuntu 14.04 LTS : linux vulnerabilities (USN-2544-1)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2015-0674.NASL
    description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the (u)verbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-8159, Important) * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) * A flaw was found in the way the Linux kernel's netfilter subsystem handled generic protocol tracking. As demonstrated in the Stream Control Transmission Protocol (SCTP) case, a remote attacker could use this flaw to bypass intended iptables rule restrictions when the associated connection tracking module was not loaded on the system. (CVE-2014-8160, Moderate) * It was found that the fix for CVE-2014-3601 was incomplete: the Linux kernel's kvm_iommu_map_pages() function still handled IOMMU mapping failures incorrectly. A privileged user in a guest with an assigned host device could use this flaw to crash the host. (CVE-2014-8369, Moderate) Red Hat would like to thank Mellanox for reporting CVE-2014-8159, and Akira Fujita of NEC for reporting CVE-2014-7822. Bug fixes : * The maximum amount of entries in the IPv6 route table (net.ipv6.route.max_size) was 4096, and every route towards this maximum size limit was counted. Communication to more systems was impossible when the limit was exceeded. Now, only cached routes are counted, which guarantees that the kernel does not run out of memory, but the user can now install as many routes as the memory allows until the kernel indicates it can no longer handle the amount of memory and returns an error message. In addition, the default 'net.ipv6.route.max_size' value has been increased to 16384 for performance improvement reasons. (BZ#1177581) * When the user attempted to scan for an FCOE-served Logical Unit Number (LUN), after an initial LUN scan, a kernel panic occurred in bnx2fc_init_task. System scanning for LUNs is now stable after LUNs have been added. (BZ#1179098) * Under certain conditions, such as when attempting to scan the network for LUNs, a race condition in the bnx2fc driver could trigger a kernel panic in bnx2fc_init_task. A patch fixing a locking issue that caused the race condition has been applied, and scanning the network for LUNs no longer leads to a kernel panic. (BZ#1179098) * Previously, it was not possible to boot the kernel on Xen hypervisor in PVHVM mode if more than 32 vCPUs were specified in the guest configuration. Support for more than 32 vCPUs has been added, and the kernel now boots successfully in the described situation. (BZ#1179343) * When the NVMe driver allocated a namespace queue, it indicated that it was a request-based driver when it was actually a block I/O-based driver. Consequently, when NVMe driver was loaded along with a request-based dm device, the system could terminate unexpectedly or become unresponsive when attempting to access data. The NVMe driver no longer sets the QUEUE_FLAG_STACKABLE bit when allocating a namespace queue and device-mapper no longer perceives NVMe driver as request-based; system hangs or crashes no longer occur. (BZ#1180555) * If a user attempted to apply an NVRAM firmware update when running the tg3 module provided with Red Hat Enterprise Linux 6.6 kernels, the update could fail. As a consequence, the Network Interface Card (NIC) could stay in an unusable state and this could prevent the entire system from booting. The tg3 module has been updated to correctly apply firmware updates. (BZ#1182903) * Support for key sizes of 256 and 192 bits has been added to AES-NI. (BZ#1184332)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 81792
    published 2015-03-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81792
    title CentOS 6 : kernel (CESA-2015:0674)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20150210_KERNEL_ON_SL5_X.NASL
    description - A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) This update also fixes the following bugs : - Previously, hot-unplugging of a virtio-blk device could in some cases lead to a kernel panic, for example during in-flight I/O requests. This update fixes race condition in the hot-unplug code in the virtio_blk.ko module. As a result, hot unplugging of the virtio-blk device no longer causes the guest kernel oops when there are in-flight I/O requests. - Before this update, due to a bug in the error-handling path, a corrupted metadata block could be used as a valid block. With this update, the error handling path has been fixed and more checks have been added to verify the metadata block. Now, when a corrupted metadata block is encountered, it is properly marked as corrupted and handled accordingly. - Previously, an incorrectly initialized variable resulted in a random value being stored in the variable that holds the number of default ACLs, and is sent in the SET_PATH_INFO data structure. Consequently, the setfacl command could, under certain circumstances, fail with an 'Invalid argument' error. With this update, the variable is correctly initialized to zero, thus fixing the bug. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-12-28
    plugin id 81308
    published 2015-02-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81308
    title Scientific Linux Security Update : kernel on SL5.x i386/x86_64
  • NASL family F5 Networks Local Security Checks
    NASL id F5_BIGIP_SOL17237.NASL
    description The implementation of certain splice_write file operations in the Linux kernel before 3.16 does not enforce a restriction on the maximum size of a single file, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted splice system call, as demonstrated by use of a file descriptor associated with an ext4 filesystem.
    last seen 2019-02-21
    modified 2019-01-04
    plugin id 85854
    published 2015-09-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85854
    title F5 Networks BIG-IP : Linux kernel vulnerability (SOL17237)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2015-0164.NASL
    description Updated kernel packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) Red Hat would like to thank Akira Fujita of NEC for reporting this issue. This update also fixes the following bugs : * Previously, hot-unplugging of a virtio-blk device could in some cases lead to a kernel panic, for example during in-flight I/O requests. This update fixes race condition in the hot-unplug code in the virtio_blk.ko module. As a result, hot unplugging of the virtio-blk device no longer causes the guest kernel oops when there are in-flight I/O requests. (BZ#1006536) * Before this update, due to a bug in the error-handling path, a corrupted metadata block could be used as a valid block. With this update, the error handling path has been fixed and more checks have been added to verify the metadata block. Now, when a corrupted metadata block is encountered, it is properly marked as corrupted and handled accordingly. (BZ#1034403) * Previously, an incorrectly initialized variable resulted in a random value being stored in the variable that holds the number of default ACLs, and is sent in the SET_PATH_INFO data structure. Consequently, the setfacl command could, under certain circumstances, fail with an 'Invalid argument' error. With this update, the variable is correctly initialized to zero, thus fixing the bug. (BZ#1105625) All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 81276
    published 2015-02-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81276
    title CentOS 5 : kernel (CESA-2015:0164)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-0164.NASL
    description Updated kernel packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) Red Hat would like to thank Akira Fujita of NEC for reporting this issue. This update also fixes the following bugs : * Previously, hot-unplugging of a virtio-blk device could in some cases lead to a kernel panic, for example during in-flight I/O requests. This update fixes race condition in the hot-unplug code in the virtio_blk.ko module. As a result, hot unplugging of the virtio-blk device no longer causes the guest kernel oops when there are in-flight I/O requests. (BZ#1006536) * Before this update, due to a bug in the error-handling path, a corrupted metadata block could be used as a valid block. With this update, the error handling path has been fixed and more checks have been added to verify the metadata block. Now, when a corrupted metadata block is encountered, it is properly marked as corrupted and handled accordingly. (BZ#1034403) * Previously, an incorrectly initialized variable resulted in a random value being stored in the variable that holds the number of default ACLs, and is sent in the SET_PATH_INFO data structure. Consequently, the setfacl command could, under certain circumstances, fail with an 'Invalid argument' error. With this update, the variable is correctly initialized to zero, thus fixing the bug. (BZ#1105625) All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 81291
    published 2015-02-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81291
    title RHEL 5 : kernel (RHSA-2015:0164)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-3098.NASL
    description The remote Oracle Linux host is missing a security update for the Unbreakable Enterprise kernel package(s).
    last seen 2019-02-21
    modified 2016-11-14
    plugin id 86881
    published 2015-11-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86881
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2015-3098)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2543-1.NASL
    description Eric Windisch discovered flaw in how the Linux kernel's XFS file system replaces remote attributes. A local access with access to an XFS file system could exploit this flaw to escalate their privileges. (CVE-2015-0274) A flaw was discovered in the automatic loading of modules in the crypto subsystem of the Linux kernel. A local user could exploit this flaw to load installed kernel modules, increasing the attack surface and potentially using this to gain administrative privileges. (CVE-2013-7421) The Linux kernel's splice system call did not correctly validate its parameters. A local, unprivileged user could exploit this flaw to cause a denial of service (system crash). (CVE-2014-7822) A flaw was discovered in the crypto subsystem when screening module names for automatic module loading if the name contained a valid crypto module name, eg. vfat(aes). A local user could exploit this flaw to load installed kernel modules, increasing the attack surface and potentially using this to gain administrative privileges. (CVE-2014-9644). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 82070
    published 2015-03-25
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=82070
    title Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2543-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-0674.NASL
    description From Red Hat Security Advisory 2015:0674 : Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the (u)verbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-8159, Important) * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) * A flaw was found in the way the Linux kernel's netfilter subsystem handled generic protocol tracking. As demonstrated in the Stream Control Transmission Protocol (SCTP) case, a remote attacker could use this flaw to bypass intended iptables rule restrictions when the associated connection tracking module was not loaded on the system. (CVE-2014-8160, Moderate) * It was found that the fix for CVE-2014-3601 was incomplete: the Linux kernel's kvm_iommu_map_pages() function still handled IOMMU mapping failures incorrectly. A privileged user in a guest with an assigned host device could use this flaw to crash the host. (CVE-2014-8369, Moderate) Red Hat would like to thank Mellanox for reporting CVE-2014-8159, and Akira Fujita of NEC for reporting CVE-2014-7822. Bug fixes : * The maximum amount of entries in the IPv6 route table (net.ipv6.route.max_size) was 4096, and every route towards this maximum size limit was counted. Communication to more systems was impossible when the limit was exceeded. Now, only cached routes are counted, which guarantees that the kernel does not run out of memory, but the user can now install as many routes as the memory allows until the kernel indicates it can no longer handle the amount of memory and returns an error message. In addition, the default 'net.ipv6.route.max_size' value has been increased to 16384 for performance improvement reasons. (BZ#1177581) * When the user attempted to scan for an FCOE-served Logical Unit Number (LUN), after an initial LUN scan, a kernel panic occurred in bnx2fc_init_task. System scanning for LUNs is now stable after LUNs have been added. (BZ#1179098) * Under certain conditions, such as when attempting to scan the network for LUNs, a race condition in the bnx2fc driver could trigger a kernel panic in bnx2fc_init_task. A patch fixing a locking issue that caused the race condition has been applied, and scanning the network for LUNs no longer leads to a kernel panic. (BZ#1179098) * Previously, it was not possible to boot the kernel on Xen hypervisor in PVHVM mode if more than 32 vCPUs were specified in the guest configuration. Support for more than 32 vCPUs has been added, and the kernel now boots successfully in the described situation. (BZ#1179343) * When the NVMe driver allocated a namespace queue, it indicated that it was a request-based driver when it was actually a block I/O-based driver. Consequently, when NVMe driver was loaded along with a request-based dm device, the system could terminate unexpectedly or become unresponsive when attempting to access data. The NVMe driver no longer sets the QUEUE_FLAG_STACKABLE bit when allocating a namespace queue and device-mapper no longer perceives NVMe driver as request-based; system hangs or crashes no longer occur. (BZ#1180555) * If a user attempted to apply an NVRAM firmware update when running the tg3 module provided with Red Hat Enterprise Linux 6.6 kernels, the update could fail. As a consequence, the Network Interface Card (NIC) could stay in an unusable state and this could prevent the entire system from booting. The tg3 module has been updated to correctly apply firmware updates. (BZ#1182903) * Support for key sizes of 256 and 192 bits has been added to AES-NI. (BZ#1184332)
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 81766
    published 2015-03-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81766
    title Oracle Linux 6 : kernel (ELSA-2015-0674)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-0164.NASL
    description From Red Hat Security Advisory 2015:0164 : Updated kernel packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate) Red Hat would like to thank Akira Fujita of NEC for reporting this issue. This update also fixes the following bugs : * Previously, hot-unplugging of a virtio-blk device could in some cases lead to a kernel panic, for example during in-flight I/O requests. This update fixes race condition in the hot-unplug code in the virtio_blk.ko module. As a result, hot unplugging of the virtio-blk device no longer causes the guest kernel oops when there are in-flight I/O requests. (BZ#1006536) * Before this update, due to a bug in the error-handling path, a corrupted metadata block could be used as a valid block. With this update, the error handling path has been fixed and more checks have been added to verify the metadata block. Now, when a corrupted metadata block is encountered, it is properly marked as corrupted and handled accordingly. (BZ#1034403) * Previously, an incorrectly initialized variable resulted in a random value being stored in the variable that holds the number of default ACLs, and is sent in the SET_PATH_INFO data structure. Consequently, the setfacl command could, under certain circumstances, fail with an 'Invalid argument' error. With this update, the variable is correctly initialized to zero, thus fixing the bug. (BZ#1105625) All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 81307
    published 2015-02-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=81307
    title Oracle Linux 5 : kernel (ELSA-2015-0164)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0057.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0057 for details.
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 99163
    published 2017-04-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99163
    title OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0057) (Dirty COW)
redhat via4
advisories
  • bugzilla
    id 1163792
    title CVE-2014-7822 kernel: splice: lack of generic write checks
    oval
    AND
    • comment Red Hat Enterprise Linux 5 is installed
      oval oval:com.redhat.rhsa:tst:20070055001
    • OR
      • AND
        • comment kernel is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164002
        • comment kernel is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099003
      • AND
        • comment kernel-PAE is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164022
        • comment kernel-PAE is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099019
      • AND
        • comment kernel-PAE-devel is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164020
        • comment kernel-PAE-devel is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099017
      • AND
        • comment kernel-debug is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164012
        • comment kernel-debug is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070993007
      • AND
        • comment kernel-debug-devel is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164014
        • comment kernel-debug-devel is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070993013
      • AND
        • comment kernel-devel is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164008
        • comment kernel-devel is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099011
      • AND
        • comment kernel-doc is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164024
        • comment kernel-doc is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099021
      • AND
        • comment kernel-headers is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164004
        • comment kernel-headers is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099005
      • AND
        • comment kernel-kdump is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164018
        • comment kernel-kdump is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099015
      • AND
        • comment kernel-kdump-devel is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164016
        • comment kernel-kdump-devel is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099013
      • AND
        • comment kernel-xen is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164006
        • comment kernel-xen is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099007
      • AND
        • comment kernel-xen-devel is earlier than 0:2.6.18-402.el5
          oval oval:com.redhat.rhsa:tst:20150164010
        • comment kernel-xen-devel is signed with Red Hat redhatrelease key
          oval oval:com.redhat.rhsa:tst:20070099009
    rhsa
    id RHSA-2015:0164
    released 2015-02-10
    severity Moderate
    title RHSA-2015:0164: kernel security and bug fix update (Moderate)
  • rhsa
    id RHSA-2015:0102
  • rhsa
    id RHSA-2015:0674
  • rhsa
    id RHSA-2015:0694
rpms
  • kernel-0:3.10.0-123.20.1.el7
  • kernel-abi-whitelists-0:3.10.0-123.20.1.el7
  • kernel-bootwrapper-0:3.10.0-123.20.1.el7
  • kernel-debug-0:3.10.0-123.20.1.el7
  • kernel-debug-devel-0:3.10.0-123.20.1.el7
  • kernel-devel-0:3.10.0-123.20.1.el7
  • kernel-doc-0:3.10.0-123.20.1.el7
  • kernel-headers-0:3.10.0-123.20.1.el7
  • kernel-kdump-0:3.10.0-123.20.1.el7
  • kernel-kdump-devel-0:3.10.0-123.20.1.el7
  • kernel-tools-0:3.10.0-123.20.1.el7
  • kernel-tools-libs-0:3.10.0-123.20.1.el7
  • kernel-tools-libs-devel-0:3.10.0-123.20.1.el7
  • perf-0:3.10.0-123.20.1.el7
  • python-perf-0:3.10.0-123.20.1.el7
  • kernel-0:2.6.18-402.el5
  • kernel-PAE-0:2.6.18-402.el5
  • kernel-PAE-devel-0:2.6.18-402.el5
  • kernel-debug-0:2.6.18-402.el5
  • kernel-debug-devel-0:2.6.18-402.el5
  • kernel-devel-0:2.6.18-402.el5
  • kernel-doc-0:2.6.18-402.el5
  • kernel-headers-0:2.6.18-402.el5
  • kernel-kdump-0:2.6.18-402.el5
  • kernel-kdump-devel-0:2.6.18-402.el5
  • kernel-xen-0:2.6.18-402.el5
  • kernel-xen-devel-0:2.6.18-402.el5
  • kernel-0:2.6.32-504.12.2.el6
  • kernel-abi-whitelists-0:2.6.32-504.12.2.el6
  • kernel-bootwrapper-0:2.6.32-504.12.2.el6
  • kernel-debug-0:2.6.32-504.12.2.el6
  • kernel-debug-devel-0:2.6.32-504.12.2.el6
  • kernel-devel-0:2.6.32-504.12.2.el6
  • kernel-doc-0:2.6.32-504.12.2.el6
  • kernel-firmware-0:2.6.32-504.12.2.el6
  • kernel-headers-0:2.6.32-504.12.2.el6
  • kernel-kdump-0:2.6.32-504.12.2.el6
  • kernel-kdump-devel-0:2.6.32-504.12.2.el6
  • perf-0:2.6.32-504.12.2.el6
  • python-perf-0:2.6.32-504.12.2.el6
refmap via4
bid 72347
confirm
debian DSA-3170
exploit-db 36743
osvdb 117810
suse
  • SUSE-SU-2015:0529
  • SUSE-SU-2015:0736
  • SUSE-SU-2015:1488
  • SUSE-SU-2015:1489
  • openSUSE-SU-2015:0714
ubuntu
  • USN-2541-1
  • USN-2542-1
  • USN-2543-1
  • USN-2544-1
Last major update 02-01-2017 - 21:59
Published 16-03-2015 - 06:59
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