var-201907-1641
Vulnerability from variot
In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit's pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments. 8) - aarch64, noarch, ppc64le, s390x, x86_64
For the oldstable distribution (stretch), this problem has been fixed in version 4.9.168-1+deb9u4.
For the stable distribution (buster), this problem has been fixed in version 4.19.37-5+deb10u1. This update includes as well a patch for a regression introduced by the original fix for CVE-2019-11478 (#930904).
For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----
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====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel-rt security update Advisory ID: RHSA-2019:2405-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:2405 Issue date: 2019-08-07 CVE Names: CVE-2019-1125 CVE-2019-13272 ==================================================================== 1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux Real Time (v. 8) - x86_64 Red Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64
- Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
-
kernel: broken permission and object lifetime handling for PTRACE_TRACEME (CVE-2019-13272)
-
kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
- Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
- Bugs fixed (https://bugzilla.redhat.com/):
1724389 - CVE-2019-1125 kernel: hw: Spectre SWAPGS gadget vulnerability 1730895 - CVE-2019-13272 kernel: broken permission and object lifetime handling for PTRACE_TRACEME
- Package List:
Red Hat Enterprise Linux Real Time for NFV (v. 8):
Source: kernel-rt-4.18.0-80.7.2.rt9.154.el8_0.src.rpm
x86_64: kernel-rt-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-core-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-core-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-devel-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-kvm-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-kvm-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-modules-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-devel-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-kvm-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-kvm-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-modules-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-modules-extra-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 8):
Source: kernel-rt-4.18.0-80.7.2.rt9.154.el8_0.src.rpm
x86_64: kernel-rt-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-core-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-core-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-devel-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-kvm-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-modules-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-devel-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-kvm-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-modules-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm kernel-rt-modules-extra-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . ========================================================================= Ubuntu Security Notice USN-4094-1 August 13, 2019
linux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux: Linux kernel - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke-4.15: Linux kernel for Google Container Engine (GKE) systems - linux-kvm: Linux kernel for cloud environments - linux-oem: Linux kernel for OEM processors - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi2: Linux kernel for Raspberry Pi 2 - linux-snapdragon: Linux kernel for Snapdragon processors - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-hwe: Linux hardware enablement (HWE) kernel
Details:
It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)
Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13093)
Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100, CVE-2018-14614, CVE-2018-14616, CVE-2018-13096, CVE-2018-13098, CVE-2018-14615)
Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613, CVE-2018-14609)
Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)
Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not properly initialize new files in some situations. A local attacker could use this to expose sensitive information. (CVE-2018-16862)
Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-20169)
It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-20856)
Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. (CVE-2018-5383)
It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126)
Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-1125)
It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-12614)
It was discovered that a NULL pointer dereference vulnerabilty existed in the Near-field communication (NFC) implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12818)
It was discovered that the MDIO bus devices subsystem in the Linux kernel improperly dropped a device reference in an error condition, leading to a use-after-free. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12819)
It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-12984)
Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13233)
Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record credentials in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2019-13272)
It was discovered that the Empia EM28xx DVB USB device driver implementation in the Linux kernel contained a use-after-free vulnerability when disconnecting the device. An attacker could use this to cause a denial of service (system crash). (CVE-2019-2024)
It was discovered that the USB video device class implementation in the Linux kernel did not properly validate control bits, resulting in an out of bounds buffer read. A local attacker could use this to possibly expose sensitive information (kernel memory). (CVE-2019-2101)
It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-3846)
It was discovered that the Appletalk IP encapsulation driver in the Linux kernel did not properly prevent kernel addresses from being copied to user space. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information. (CVE-2018-20511)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: linux-image-4.15.0-1021-oracle 4.15.0-1021.23 linux-image-4.15.0-1040-gcp 4.15.0-1040.42 linux-image-4.15.0-1040-gke 4.15.0-1040.42 linux-image-4.15.0-1042-kvm 4.15.0-1042.42 linux-image-4.15.0-1043-raspi2 4.15.0-1043.46 linux-image-4.15.0-1050-oem 4.15.0-1050.57 linux-image-4.15.0-1060-snapdragon 4.15.0-1060.66 linux-image-4.15.0-58-generic 4.15.0-58.64 linux-image-4.15.0-58-generic-lpae 4.15.0-58.64 linux-image-4.15.0-58-lowlatency 4.15.0-58.64 linux-image-gcp 4.15.0.1040.42 linux-image-generic 4.15.0.58.60 linux-image-generic-lpae 4.15.0.58.60 linux-image-gke 4.15.0.1040.43 linux-image-gke-4.15 4.15.0.1040.43 linux-image-kvm 4.15.0.1042.42 linux-image-lowlatency 4.15.0.58.60 linux-image-oem 4.15.0.1050.54 linux-image-oracle 4.15.0.1021.24 linux-image-powerpc-e500mc 4.15.0.58.60 linux-image-powerpc-smp 4.15.0.58.60 linux-image-powerpc64-emb 4.15.0.58.60 linux-image-powerpc64-smp 4.15.0.58.60 linux-image-raspi2 4.15.0.1043.41 linux-image-snapdragon 4.15.0.1060.63 linux-image-virtual 4.15.0.58.60
Ubuntu 16.04 LTS: linux-image-4.15.0-1021-oracle 4.15.0-1021.23~16.04.1 linux-image-4.15.0-1040-gcp 4.15.0-1040.42~16.04.1 linux-image-4.15.0-1055-azure 4.15.0-1055.60 linux-image-4.15.0-58-generic 4.15.0-58.64~16.04.1 linux-image-4.15.0-58-generic-lpae 4.15.0-58.64~16.04.1 linux-image-4.15.0-58-lowlatency 4.15.0-58.64~16.04.1 linux-image-azure 4.15.0.1055.58 linux-image-gcp 4.15.0.1040.54 linux-image-generic-hwe-16.04 4.15.0.58.79 linux-image-generic-lpae-hwe-16.04 4.15.0.58.79 linux-image-gke 4.15.0.1040.54 linux-image-lowlatency-hwe-16.04 4.15.0.58.79 linux-image-oem 4.15.0.58.79 linux-image-oracle 4.15.0.1021.15 linux-image-virtual-hwe-16.04 4.15.0.58.79
After a standard system update you need to reboot your computer to make all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.
References: https://usn.ubuntu.com/4094-1 CVE-2018-13053, CVE-2018-13093, CVE-2018-13096, CVE-2018-13097, CVE-2018-13098, CVE-2018-13099, CVE-2018-13100, CVE-2018-14609, CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613, CVE-2018-14614, CVE-2018-14615, CVE-2018-14616, CVE-2018-14617, CVE-2018-16862, CVE-2018-20169, CVE-2018-20511, CVE-2018-20856, CVE-2018-5383, CVE-2019-10126, CVE-2019-1125, CVE-2019-12614, CVE-2019-12818, CVE-2019-12819, CVE-2019-12984, CVE-2019-13233, CVE-2019-13272, CVE-2019-2024, CVE-2019-2101, CVE-2019-3846
Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-58.64 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1040.42 https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1040.42 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1042.42 https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1050.57 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1021.23 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1043.46 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1060.66 https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1055.60 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1040.42~16.04.1 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-58.64~16.04.1 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1021.23~16.04.1 . (CVE-2019-10126)
Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values generated for connectionless networking protocols. (CVE-2019-13272)
Update instructions:
The problem can be corrected by updating your livepatches to the following versions:
| Kernel | Version | flavors | |--------------------------+----------+--------------------------| | 4.4.0-148.174 | 54.1 | lowlatency, generic | | 4.4.0-150.176 | 54.1 | generic, lowlatency | | 4.4.0-151.178 | 54.1 | lowlatency, generic | | 4.4.0-154.181 | 54.1 | lowlatency, generic | | 4.4.0-157.185 | 54.1 | lowlatency, generic | | 4.15.0-50.54 | 54.2 | generic, lowlatency | | 4.15.0-50.54~16.04.1 | 54.2 | generic, lowlatency | | 4.15.0-51.55 | 54.2 | generic, lowlatency | | 4.15.0-51.55~16.04.1 | 54.2 | generic, lowlatency | | 4.15.0-52.56 | 54.2 | lowlatency, generic | | 4.15.0-52.56~16.04.1 | 54.2 | generic, lowlatency | | 4.15.0-54.58 | 54.2 | generic, lowlatency | | 4.15.0-54.58~16.04.1 | 54.2 | generic, lowlatency | | 4.15.0-55.60 | 54.2 | generic, lowlatency |
References: CVE-2018-1129, CVE-2019-2101, CVE-2019-3846, CVE-2019-10126, CVE-2019-12614, CVE-2019-12818, CVE-2019-12819, CVE-2019-12984, CVE-2019-13272
-- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce
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"data": "In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit\u0027s pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments. 8) - aarch64, noarch, ppc64le, s390x, x86_64\n\n3. \n\nFor the oldstable distribution (stretch), this problem has been fixed\nin version 4.9.168-1+deb9u4. \n\nFor the stable distribution (buster), this problem has been fixed in\nversion 4.19.37-5+deb10u1. This update includes as well a patch for a\nregression introduced by the original fix for CVE-2019-11478 (#930904). \n\nFor the detailed security status of linux please refer to its security\ntracker page at:\nhttps://security-tracker.debian.org/tracker/linux\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n-----BEGIN PGP SIGNATURE-----\n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\ncojPRl2Qd2KSWfEUoze2IqPrr3iAnKFKH6a+WU1XQZuo6r3uo0Q=\n=fTIm\n-----END PGP SIGNATURE-----\n. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n==================================================================== \nRed Hat Security Advisory\n\nSynopsis: Important: kernel-rt security update\nAdvisory ID: RHSA-2019:2405-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2019:2405\nIssue date: 2019-08-07\nCVE Names: CVE-2019-1125 CVE-2019-13272\n====================================================================\n1. Summary:\n\nAn update for kernel-rt is now available for Red Hat Enterprise Linux 8. \n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Real Time (v. 8) - x86_64\nRed Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64\n\n3. Description:\n\nThe kernel-rt packages provide the Real Time Linux Kernel, which enables\nfine-tuning for systems with extremely high determinism requirements. \n\nSecurity Fix(es):\n\n* kernel: broken permission and object lifetime handling for PTRACE_TRACEME\n(CVE-2019-13272)\n\n* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect. \n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1724389 - CVE-2019-1125 kernel: hw: Spectre SWAPGS gadget vulnerability\n1730895 - CVE-2019-13272 kernel: broken permission and object lifetime handling for PTRACE_TRACEME\n\n6. Package List:\n\nRed Hat Enterprise Linux Real Time for NFV (v. 8):\n\nSource:\nkernel-rt-4.18.0-80.7.2.rt9.154.el8_0.src.rpm\n\nx86_64:\nkernel-rt-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-core-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-core-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-devel-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-kvm-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-kvm-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-modules-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-modules-extra-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debuginfo-common-x86_64-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-devel-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-kvm-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-kvm-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-modules-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-modules-extra-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\n\nRed Hat Enterprise Linux Real Time (v. 8):\n\nSource:\nkernel-rt-4.18.0-80.7.2.rt9.154.el8_0.src.rpm\n\nx86_64:\nkernel-rt-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-core-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-core-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-devel-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-kvm-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-modules-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debug-modules-extra-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-debuginfo-common-x86_64-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-devel-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-kvm-debuginfo-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-modules-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\nkernel-rt-modules-extra-4.18.0-80.7.2.rt9.154.el8_0.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2019 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n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\nqgIfQE0nJy8=+GEc\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. =========================================================================\nUbuntu Security Notice USN-4094-1\nAugust 13, 2019\n\nlinux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm,\nlinux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities\n=========================================================================\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 18.04 LTS\n- Ubuntu 16.04 LTS\n\nSummary:\n\nSeveral security issues were fixed in the Linux kernel. \n\nSoftware Description:\n- linux: Linux kernel\n- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems\n- linux-gke-4.15: Linux kernel for Google Container Engine (GKE) systems\n- linux-kvm: Linux kernel for cloud environments\n- linux-oem: Linux kernel for OEM processors\n- linux-oracle: Linux kernel for Oracle Cloud systems\n- linux-raspi2: Linux kernel for Raspberry Pi 2\n- linux-snapdragon: Linux kernel for Snapdragon processors\n- linux-azure: Linux kernel for Microsoft Azure Cloud systems\n- linux-hwe: Linux hardware enablement (HWE) kernel\n\nDetails:\n\nIt was discovered that the alarmtimer implementation in the Linux kernel\ncontained an integer overflow vulnerability. A local attacker could use\nthis to cause a denial of service. (CVE-2018-13053)\n\nWen Xu discovered that the XFS filesystem implementation in the Linux\nkernel did not properly track inode validations. An attacker could use this\nto construct a malicious XFS image that, when mounted, could cause a denial\nof service (system crash). (CVE-2018-13093)\n\nWen Xu discovered that the f2fs file system implementation in the\nLinux kernel did not properly validate metadata. An attacker could\nuse this to construct a malicious f2fs image that, when mounted,\ncould cause a denial of service (system crash). (CVE-2018-13097,\nCVE-2018-13099, CVE-2018-13100, CVE-2018-14614, CVE-2018-14616,\nCVE-2018-13096, CVE-2018-13098, CVE-2018-14615)\n\nWen Xu and Po-Ning Tseng discovered that btrfs file system\nimplementation in the Linux kernel did not properly validate\nmetadata. An attacker could use this to construct a malicious\nbtrfs image that, when mounted, could cause a denial of service\n(system crash). (CVE-2018-14610, CVE-2018-14611, CVE-2018-14612,\nCVE-2018-14613, CVE-2018-14609)\n\nWen Xu discovered that the HFS+ filesystem implementation in the Linux\nkernel did not properly handle malformed catalog data in some situations. \nAn attacker could use this to construct a malicious HFS+ image that, when\nmounted, could cause a denial of service (system crash). (CVE-2018-14617)\n\nVasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem\nof the Linux kernel did not properly initialize new files in some\nsituations. A local attacker could use this to expose sensitive\ninformation. (CVE-2018-16862)\n\nHui Peng and Mathias Payer discovered that the USB subsystem in the Linux\nkernel did not properly handle size checks when handling an extra USB\ndescriptor. A physically proximate attacker could use this to cause a\ndenial of service (system crash). (CVE-2018-20169)\n\nIt was discovered that a use-after-free error existed in the block layer\nsubsystem of the Linux kernel when certain failure conditions occurred. A\nlocal attacker could possibly use this to cause a denial of service (system\ncrash) or possibly execute arbitrary code. (CVE-2018-20856)\n\nEli Biham and Lior Neumann discovered that the Bluetooth implementation in\nthe Linux kernel did not properly validate elliptic curve parameters during\nDiffie-Hellman key exchange in some situations. An attacker could use this\nto expose sensitive information. (CVE-2018-5383)\n\nIt was discovered that a heap buffer overflow existed in the Marvell\nWireless LAN device driver for the Linux kernel. An attacker could use this\nto cause a denial of service (system crash) or possibly execute arbitrary\ncode. (CVE-2019-10126)\n\nAndrei Vlad Lutas and Dan Lutas discovered that some x86 processors\nincorrectly handle SWAPGS instructions during speculative execution. A\nlocal attacker could use this to expose sensitive information (kernel\nmemory). (CVE-2019-1125)\n\nIt was discovered that the PowerPC dlpar implementation in the Linux kernel\ndid not properly check for allocation errors in some situations. A local\nattacker could possibly use this to cause a denial of service (system\ncrash). (CVE-2019-12614)\n\nIt was discovered that a NULL pointer dereference vulnerabilty existed in\nthe Near-field communication (NFC) implementation in the Linux kernel. An\nattacker could use this to cause a denial of service (system crash). \n(CVE-2019-12818)\n\nIt was discovered that the MDIO bus devices subsystem in the Linux kernel\nimproperly dropped a device reference in an error condition, leading to a\nuse-after-free. An attacker could use this to cause a denial of service\n(system crash). (CVE-2019-12819)\n\nIt was discovered that a NULL pointer dereference vulnerability existed in\nthe Near-field communication (NFC) implementation in the Linux kernel. A\nlocal attacker could use this to cause a denial of service (system crash). \n(CVE-2019-12984)\n\nJann Horn discovered a use-after-free vulnerability in the Linux kernel\nwhen accessing LDT entries in some situations. A local attacker could use\nthis to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2019-13233)\n\nJann Horn discovered that the ptrace implementation in the Linux kernel did\nnot properly record credentials in some situations. A local attacker could\nuse this to cause a denial of service (system crash) or possibly gain\nadministrative privileges. (CVE-2019-13272)\n\nIt was discovered that the Empia EM28xx DVB USB device driver\nimplementation in the Linux kernel contained a use-after-free vulnerability\nwhen disconnecting the device. An attacker could use this to cause a denial\nof service (system crash). (CVE-2019-2024)\n\nIt was discovered that the USB video device class implementation in the\nLinux kernel did not properly validate control bits, resulting in an out of\nbounds buffer read. A local attacker could use this to possibly expose\nsensitive information (kernel memory). (CVE-2019-2101)\n\nIt was discovered that the Marvell Wireless LAN device driver in the Linux\nkernel did not properly validate the BSS descriptor. A local attacker could\npossibly use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2019-3846)\n\nIt was discovered that the Appletalk IP encapsulation driver in the Linux\nkernel did not properly prevent kernel addresses from being copied to user\nspace. A local attacker with the CAP_NET_ADMIN capability could use this to\nexpose sensitive information. (CVE-2018-20511)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 18.04 LTS:\n linux-image-4.15.0-1021-oracle 4.15.0-1021.23\n linux-image-4.15.0-1040-gcp 4.15.0-1040.42\n linux-image-4.15.0-1040-gke 4.15.0-1040.42\n linux-image-4.15.0-1042-kvm 4.15.0-1042.42\n linux-image-4.15.0-1043-raspi2 4.15.0-1043.46\n linux-image-4.15.0-1050-oem 4.15.0-1050.57\n linux-image-4.15.0-1060-snapdragon 4.15.0-1060.66\n linux-image-4.15.0-58-generic 4.15.0-58.64\n linux-image-4.15.0-58-generic-lpae 4.15.0-58.64\n linux-image-4.15.0-58-lowlatency 4.15.0-58.64\n linux-image-gcp 4.15.0.1040.42\n linux-image-generic 4.15.0.58.60\n linux-image-generic-lpae 4.15.0.58.60\n linux-image-gke 4.15.0.1040.43\n linux-image-gke-4.15 4.15.0.1040.43\n linux-image-kvm 4.15.0.1042.42\n linux-image-lowlatency 4.15.0.58.60\n linux-image-oem 4.15.0.1050.54\n linux-image-oracle 4.15.0.1021.24\n linux-image-powerpc-e500mc 4.15.0.58.60\n linux-image-powerpc-smp 4.15.0.58.60\n linux-image-powerpc64-emb 4.15.0.58.60\n linux-image-powerpc64-smp 4.15.0.58.60\n linux-image-raspi2 4.15.0.1043.41\n linux-image-snapdragon 4.15.0.1060.63\n linux-image-virtual 4.15.0.58.60\n\nUbuntu 16.04 LTS:\n linux-image-4.15.0-1021-oracle 4.15.0-1021.23~16.04.1\n linux-image-4.15.0-1040-gcp 4.15.0-1040.42~16.04.1\n linux-image-4.15.0-1055-azure 4.15.0-1055.60\n linux-image-4.15.0-58-generic 4.15.0-58.64~16.04.1\n linux-image-4.15.0-58-generic-lpae 4.15.0-58.64~16.04.1\n linux-image-4.15.0-58-lowlatency 4.15.0-58.64~16.04.1\n linux-image-azure 4.15.0.1055.58\n linux-image-gcp 4.15.0.1040.54\n linux-image-generic-hwe-16.04 4.15.0.58.79\n linux-image-generic-lpae-hwe-16.04 4.15.0.58.79\n linux-image-gke 4.15.0.1040.54\n linux-image-lowlatency-hwe-16.04 4.15.0.58.79\n linux-image-oem 4.15.0.58.79\n linux-image-oracle 4.15.0.1021.15\n linux-image-virtual-hwe-16.04 4.15.0.58.79\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. \n\nATTENTION: Due to an unavoidable ABI change the kernel updates have\nbeen given a new version number, which requires you to recompile and\nreinstall all third party kernel modules you might have installed. \nUnless you manually uninstalled the standard kernel metapackages\n(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,\nlinux-powerpc), a standard system upgrade will automatically perform\nthis as well. \n\nReferences:\n https://usn.ubuntu.com/4094-1\n CVE-2018-13053, CVE-2018-13093, CVE-2018-13096, CVE-2018-13097,\n CVE-2018-13098, CVE-2018-13099, CVE-2018-13100, CVE-2018-14609,\n CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613,\n CVE-2018-14614, CVE-2018-14615, CVE-2018-14616, CVE-2018-14617,\n CVE-2018-16862, CVE-2018-20169, CVE-2018-20511, CVE-2018-20856,\n CVE-2018-5383, CVE-2019-10126, CVE-2019-1125, CVE-2019-12614,\n CVE-2019-12818, CVE-2019-12819, CVE-2019-12984, CVE-2019-13233,\n CVE-2019-13272, CVE-2019-2024, CVE-2019-2101, CVE-2019-3846\n\nPackage Information:\n https://launchpad.net/ubuntu/+source/linux/4.15.0-58.64\n https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1040.42\n https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1040.42\n https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1042.42\n https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1050.57\n https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1021.23\n https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1043.46\n https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1060.66\n https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1055.60\n https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1040.42~16.04.1\n https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-58.64~16.04.1\n https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1021.23~16.04.1\n. (CVE-2019-10126)\n\nAmit Klein and Benny Pinkas discovered that the Linux kernel did not\nsufficiently randomize IP ID values generated for connectionless networking\nprotocols. (CVE-2019-13272)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your livepatches to the following\nversions:\n\n| Kernel | Version | flavors |\n|--------------------------+----------+--------------------------|\n| 4.4.0-148.174 | 54.1 | lowlatency, generic |\n| 4.4.0-150.176 | 54.1 | generic, lowlatency |\n| 4.4.0-151.178 | 54.1 | lowlatency, generic |\n| 4.4.0-154.181 | 54.1 | lowlatency, generic |\n| 4.4.0-157.185 | 54.1 | lowlatency, generic |\n| 4.15.0-50.54 | 54.2 | generic, lowlatency |\n| 4.15.0-50.54~16.04.1 | 54.2 | generic, lowlatency |\n| 4.15.0-51.55 | 54.2 | generic, lowlatency |\n| 4.15.0-51.55~16.04.1 | 54.2 | generic, lowlatency |\n| 4.15.0-52.56 | 54.2 | lowlatency, generic |\n| 4.15.0-52.56~16.04.1 | 54.2 | generic, lowlatency |\n| 4.15.0-54.58 | 54.2 | generic, lowlatency |\n| 4.15.0-54.58~16.04.1 | 54.2 | generic, lowlatency |\n| 4.15.0-55.60 | 54.2 | generic, lowlatency |\n\nReferences:\n CVE-2018-1129, CVE-2019-2101, CVE-2019-3846, CVE-2019-10126, \n CVE-2019-12614, CVE-2019-12818, CVE-2019-12819, CVE-2019-12984, \n CVE-2019-13272\n\n\n-- \nubuntu-security-announce mailing list\nubuntu-security-announce@lists.ubuntu.com\nModify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce\n",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.