ID CVE-2015-7884
Summary The vivid_fb_ioctl function in drivers/media/platform/vivid/vivid-osd.c in the Linux kernel through 4.3.3 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel memory via a crafted application.
References
Vulnerable Configurations
  • Linux Kernel 4.3.2
    cpe:2.3:o:linux:linux_kernel:4.3.2
CVSS
Base: 1.9 (as of 28-12-2015 - 14:24)
Impact:
Exploitability:
CWE CWE-200
CAPEC
  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
  • Reusing Session IDs (aka Session Replay)
    This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.
  • Using Slashes in Alternate Encoding
    This attack targets the encoding of the Slash characters. An attacker would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the attacker many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.
Access
VectorComplexityAuthentication
LOCAL MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
nessus via4
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2842-2.NASL
    description Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. (CVE-2015-8104) Guoyong Gang discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799) It was discovered that the virtual video osd test driver in the Linux kernel did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7884) It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885). 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 87469
    published 2015-12-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87469
    title Ubuntu 14.04 LTS : linux-lts-vivid vulnerabilities (USN-2842-2)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-445.NASL
    description The openSUSE Leap 42.1 kernel was updated to 4.1.20 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2015-1339: A memory leak in cuse could be used to exhaust kernel memory. (bsc#969356). - CVE-2015-7799: The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel did not ensure that certain slot numbers are valid, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (bnc#949936 951638). - CVE-2015-7872: The key_gc_unused_keys function in security/keys/gc.c in the Linux kernel allowed local users to cause a denial of service (OOPS) via crafted keyctl commands (bnc#951440). - CVE-2015-7884: The vivid_fb_ioctl function in drivers/media/platform/vivid/vivid-osd.c in the Linux kernel did not initialize a certain structure member, which allowed local users to obtain sensitive information from kernel memory via a crafted application (bnc#951626). - CVE-2015-8104: The KVM subsystem in the Linux kernel allowed guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c (bnc#954404). - CVE-2015-8709: kernel/ptrace.c in the Linux kernel mishandled uid and gid mappings, which allowed local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states 'there is no kernel bug here (bnc#959709). - CVE-2015-8767: net/sctp/sm_sideeffect.c in the Linux kernel did not properly manage the relationship between a lock and a socket, which allowed local users to cause a denial of service (deadlock) via a crafted sctp_accept call. (bsc#961509) - CVE-2015-8785: The fuse_fill_write_pages function in fs/fuse/file.c in the Linux kernel allowed local users to cause a denial of service (infinite loop) via a writev system call that triggers a zero length for the first segment of an iov (bnc#963765). - CVE-2015-8787: The nf_nat_redirect_ipv4 function in net/netfilter/nf_nat_redirect.c in the Linux kernel allowed remote attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by sending certain IPv4 packets to an incompletely configured interface, a related issue to CVE-2003-1604 (bnc#963931). - CVE-2015-8812: A flaw was found in the CXGB3 kernel driver when the network was considered congested. The kernel would incorrectly misinterpret the congestion as an error condition and incorrectly free/clean up the skb. When the device would then send the skb's queued, these structures would be referenced and may panic the system or allow an attacker to escalate privileges in a use-after-free scenario. (bsc#966437). - CVE-2016-0723: Race condition in the tty_ioctl function in drivers/tty/tty_io.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free and system crash) by making a TIOCGETD ioctl call during processing of a TIOCSETD ioctl call (bnc#961500). - CVE-2016-2069: When Linux invalidated a paging structure that is not in use locally, it could, in principle, race against another CPU that is switching to a process that uses the paging structure in question. (bsc#963767) - CVE-2016-2184: A malicious USB device could cause a kernel crash in the alsa usb-audio driver. (bsc#971125) - CVE-2016-2383: Incorrect branch fixups for eBPF allow arbitrary read of kernel memory. (bsc#966684) - CVE-2016-2384: A malicious USB device could cause a kernel crash in the alsa usb-audio driver. (bsc#966693) The following non-security bugs were fixed : - alsa: hda - Apply clock gate workaround to Skylake, too (bsc#966137). - alsa: hda - disable dynamic clock gating on Broxton before reset (bsc#966137). - alsa: hda - Fix playback noise with 24/32 bit sample size on BXT (bsc#966137). - alsa: seq: Fix double port list deletion (bsc#968018). - alsa: seq: Fix leak of pool buffer at concurrent writes (bsc#968018). - alsa: timer: Fix race between stop and interrupt (bsc#968018). - alsa: timer: Fix wrong instance passed to slave callbacks (bsc#968018). - arm64: Add workaround for Cavium erratum 27456. - arm64: Backport arm64 patches from SLE12-SP1-ARM - btrfs: teach backref walking about backrefs with underflowed (bsc#966259). - cgroup kabi fix for 4.1.19. - config: Disable CONFIG_DDR. CONFIG_DDR is selected automatically by drivers which need it. - config: Disable MFD_TPS65218 The TPS65218 is a power management IC for 32-bit ARM systems. - config: Modularize NF_REJECT_IPV4/V6 There is no reason why these helper modules should be built-in when the rest of netfilter is built as modules. - config: Update x86 config files: Enable Intel RAPL This driver is useful when power caping is needed. It was enabled in the SLE kernel 2 years ago. - Delete patches.fixes/bridge-module-get-put.patch. As discussed in http://lists.opensuse.org/opensuse-kernel/2015-11/msg000 46.html - drm/i915: Fix double unref in intelfb_alloc failure path (boo#962866, boo#966179). - drm/i915: Fix failure paths around initial fbdev allocation (boo#962866, boo#966179). - drm/i915: Pin the ifbdev for the info->system_base GGTT mmapping (boo#962866, boo#966179). - e1000e: Avoid divide by zero error (bsc#965125). - e1000e: fix division by zero on jumbo MTUs (bsc#965125). - e1000e: fix systim issues (bsc#965125). - e1000e: Fix tight loop implementation of systime read algorithm (bsc#965125). - ibmvnic: Fix ibmvnic_capability struct. - intel: Disable Skylake support in intel_idle driver again (boo#969582) This turned out to bring a regression on some machines, unfortunately. It should be addressed in the upstream at first. - intel_idle: allow idle states to be freeze-mode specific (boo#969582). - intel_idle: Skylake Client Support (boo#969582). - intel_idle: Skylake Client Support - updated (boo#969582). - libceph: fix scatterlist last_piece calculation (bsc#963746). - lio: Add LIO clustered RBD backend (fate#318836) - net kabi fixes for 4.1.19. - numa patches updated to v15 - ocfs2: fix dlmglue deadlock issue(bnc#962257) - pci: thunder: Add driver for ThunderX-pass{1,2} on-chip devices - pci: thunder: Add PCIe host driver for ThunderX processors - sd: Optimal I/O size is in bytes, not sectors (boo#961263). - sd: Reject optimal transfer length smaller than page size (boo#961263). - series.conf: move cxgb3 patch to network drivers section
    last seen 2019-02-21
    modified 2018-11-19
    plugin id 90482
    published 2016-04-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90482
    title openSUSE Security Update : the Linux Kernel (openSUSE-2016-445)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2843-2.NASL
    description Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. (CVE-2015-8104) Guoyong Gang discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799) Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted to garbage collect incompletely instantiated keys. A local unprivileged attacker could use this to cause a denial of service (system crash). (CVE-2015-7872) It was discovered that the virtual video osd test driver in the Linux kernel did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7884) It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885). 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 87497
    published 2015-12-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87497
    title Ubuntu 14.04 LTS : linux-lts-wily vulnerabilities (USN-2843-2)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2843-3.NASL
    description Guoyong Gang discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799) Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted to garbage collect incompletely instantiated keys. A local unprivileged attacker could use this to cause a denial of service (system crash). (CVE-2015-7872) It was discovered that the virtual video osd test driver in the Linux kernel did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7884) It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885). 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 87498
    published 2015-12-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87498
    title Ubuntu 15.10 : linux-raspi2 vulnerabilities (USN-2843-3)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2842-1.NASL
    description Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. (CVE-2015-8104) Guoyong Gang discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799) It was discovered that the virtual video osd test driver in the Linux kernel did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7884) It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885). 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 87468
    published 2015-12-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87468
    title Ubuntu 15.04 : linux vulnerabilities (USN-2842-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2843-1.NASL
    description Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. (CVE-2015-8104) Guoyong Gang discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799) Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted to garbage collect incompletely instantiated keys. A local unprivileged attacker could use this to cause a denial of service (system crash). (CVE-2015-7872) It was discovered that the virtual video osd test driver in the Linux kernel did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7884) It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885). 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 87470
    published 2015-12-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87470
    title Ubuntu 15.10 : linux vulnerabilities (USN-2843-1)
refmap via4
bid 77317
confirm
mlist [oss-security] 20151021 Re: CVE Request: Linux Kernel ioctl infoleaks on vivid-osd and dgnc
sectrack 1034893
suse openSUSE-SU-2016:1008
ubuntu
  • USN-2842-1
  • USN-2842-2
  • USN-2843-1
  • USN-2843-2
  • USN-2843-3
Last major update 07-12-2016 - 13:25
Published 28-12-2015 - 06:59
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