var-201909-1049
Vulnerability from variot
A backporting error was discovered in the Linux stable/longterm kernel 4.4.x through 4.4.190, 4.9.x through 4.9.190, 4.14.x through 4.14.141, 4.19.x through 4.19.69, and 5.2.x through 5.2.11. Misuse of the upstream "x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()" commit reintroduced the Spectre vulnerability that it aimed to eliminate. This occurred because the backport process depends on cherry picking specific commits, and because two (correctly ordered) code lines were swapped. Linux Kernel Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. This vulnerability stems from configuration errors in network systems or products during operation. The following products and versions are affected: Linux kernel 4.4.x to 4.4.190, 4.9.x to 4.9.190, 4.14.x to 4.14.141, 4.19.x to 4.19.69, 5.2 .x versions up to 5.2.11. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512
Debian Security Advisory DSA-4531-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso September 25, 2019 https://www.debian.org/security/faq
Package : linux CVE ID : CVE-2019-14821 CVE-2019-14835 CVE-2019-15117 CVE-2019-15118 CVE-2019-15902
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.
CVE-2019-14821
Matt Delco reported a race condition in KVM's coalesced MMIO
facility, which could lead to out-of-bounds access in the kernel.
CVE-2019-14835
Peter Pi of Tencent Blade Team discovered a missing bounds check
in vhost_net, the network back-end driver for KVM hosts, leading
to a buffer overflow when the host begins live migration of a VM. On the amd64 architecture, and on the
arm64 architecture in buster, this is mitigated by a guard page
on the kernel stack, so that it is only possible to cause a crash.
CVE-2019-15902
Brad Spengler reported that a backporting error reintroduced a
spectre-v1 vulnerability in the ptrace subsystem in the
ptrace_get_debugreg() function.
For the oldstable distribution (stretch), these problems have been fixed in version 4.9.189-3+deb9u1.
For the stable distribution (buster), these problems have been fixed in version 4.19.67-2+deb10u1.
We recommend that you upgrade your linux packages.
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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linux-lts-xenial, linux-aws vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty
Details:
USN-4163-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM.
It was discovered that a race condition existed in the ARC EMAC ethernet driver for the Linux kernel, resulting in a use-after-free vulnerability. An attacker could use this to cause a denial of service (system crash). (CVE-2016-10906)
It was discovered that a race condition existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel when handling certain error conditions. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2017-18232)
It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-21008)
Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14814, CVE-2019-14816)
Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. A local attacker with write access to /dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-14821)
Hui Peng and Mathias Payer discovered that the USB audio driver for the Linux kernel did not properly validate device meta data. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15117)
Hui Peng and Mathias Payer discovered that the USB audio driver for the Linux kernel improperly performed recursion while handling device meta data. A physically proximate attacker could use this to cause a denial of service (system crash). A physically proximate attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. A local attacker could possibly use this to expose sensitive information. (CVE-2019-15902)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04 ESM: linux-image-4.4.0-1056-aws 4.4.0-1056.60 linux-image-4.4.0-166-generic 4.4.0-166.195~14.04.1 linux-image-4.4.0-166-generic-lpae 4.4.0-166.195~14.04.1 linux-image-4.4.0-166-lowlatency 4.4.0-166.195~14.04.1 linux-image-4.4.0-166-powerpc-e500mc 4.4.0-166.195~14.04.1 linux-image-4.4.0-166-powerpc-smp 4.4.0-166.195~14.04.1 linux-image-4.4.0-166-powerpc64-emb 4.4.0-166.195~14.04.1 linux-image-4.4.0-166-powerpc64-smp 4.4.0-166.195~14.04.1 linux-image-aws 4.4.0.1056.57 linux-image-generic-lpae-lts-xenial 4.4.0.166.145 linux-image-generic-lts-xenial 4.4.0.166.145 linux-image-lowlatency-lts-xenial 4.4.0.166.145 linux-image-powerpc-e500mc-lts-xenial 4.4.0.166.145 linux-image-powerpc-smp-lts-xenial 4.4.0.166.145 linux-image-powerpc64-emb-lts-xenial 4.4.0.166.145 linux-image-powerpc64-smp-lts-xenial 4.4.0.166.145 linux-image-virtual-lts-xenial 4.4.0.166.145
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/4163-2 https://usn.ubuntu.com/4163-1 CVE-2016-10906, CVE-2017-18232, CVE-2018-21008, CVE-2019-14814, CVE-2019-14816, CVE-2019-14821, CVE-2019-15117, CVE-2019-15118, CVE-2019-15505, CVE-2019-15902 . Please note that the RDS protocol is blacklisted in Ubuntu by default
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"data": "A backporting error was discovered in the Linux stable/longterm kernel 4.4.x through 4.4.190, 4.9.x through 4.9.190, 4.14.x through 4.14.141, 4.19.x through 4.19.69, and 5.2.x through 5.2.11. Misuse of the upstream \"x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()\" commit reintroduced the Spectre vulnerability that it aimed to eliminate. This occurred because the backport process depends on cherry picking specific commits, and because two (correctly ordered) code lines were swapped. Linux Kernel Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. This vulnerability stems from configuration errors in network systems or products during operation. The following products and versions are affected: Linux kernel 4.4.x to 4.4.190, 4.9.x to 4.9.190, 4.14.x to 4.14.141, 4.19.x to 4.19.69, 5.2 .x versions up to 5.2.11. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA512\n\n- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4531-1 security@debian.org\nhttps://www.debian.org/security/ Salvatore Bonaccorso\nSeptember 25, 2019 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : linux\nCVE ID : CVE-2019-14821 CVE-2019-14835 CVE-2019-15117 CVE-2019-15118\n CVE-2019-15902\n\nSeveral vulnerabilities have been discovered in the Linux kernel that\nmay lead to a privilege escalation, denial of service or information\nleaks. \n\nCVE-2019-14821\n\n Matt Delco reported a race condition in KVM\u0027s coalesced MMIO\n facility, which could lead to out-of-bounds access in the kernel. \n\nCVE-2019-14835\n\n Peter Pi of Tencent Blade Team discovered a missing bounds check\n in vhost_net, the network back-end driver for KVM hosts, leading\n to a buffer overflow when the host begins live migration of a VM. On the amd64 architecture, and on the\n arm64 architecture in buster, this is mitigated by a guard page\n on the kernel stack, so that it is only possible to cause a crash. \n\nCVE-2019-15902\n\n Brad Spengler reported that a backporting error reintroduced a\n spectre-v1 vulnerability in the ptrace subsystem in the\n ptrace_get_debugreg() function. \n\nFor the oldstable distribution (stretch), these problems have been fixed\nin version 4.9.189-3+deb9u1. \n\nFor the stable distribution (buster), these problems have been fixed in\nversion 4.19.67-2+deb10u1. \n\nWe recommend that you upgrade your linux packages. \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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\n3d87MB8FEHu4RDGSgomb849wuAXnEVDwM034VtURUSEAXVFQ0dY=Wqdv\n-----END PGP SIGNATURE-----\n. =========================================================================\nUbuntu Security Notice USN-4163-2\nOctober 23, 2019\n\nlinux-lts-xenial, linux-aws vulnerabilities\n=========================================================================\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 14.04 ESM\n\nSummary:\n\nSeveral security issues were fixed in the Linux kernel. \n\nSoftware Description:\n- linux-aws: Linux kernel for Amazon Web Services (AWS) systems\n- linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty\n\nDetails:\n\nUSN-4163-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04\nLTS. This update provides the corresponding updates for the Linux\nHardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu\n14.04 ESM. \n\nIt was discovered that a race condition existed in the ARC EMAC ethernet\ndriver for the Linux kernel, resulting in a use-after-free vulnerability. \nAn attacker could use this to cause a denial of service (system crash). \n(CVE-2016-10906)\n\nIt was discovered that a race condition existed in the Serial Attached SCSI\n(SAS) implementation in the Linux kernel when handling certain error\nconditions. A local attacker could use this to cause a denial of service\n(kernel deadlock). (CVE-2017-18232)\n\nIt was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not\ndid not handle detach operations correctly, leading to a use-after-free\nvulnerability. A physically proximate attacker could use this to cause a\ndenial of service (system crash) or possibly execute arbitrary code. \n(CVE-2018-21008)\n\nWen Huang discovered that the Marvell Wi-Fi device driver in the Linux\nkernel did not properly perform bounds checking, leading to a heap\noverflow. A local attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2019-14814,\nCVE-2019-14816)\n\nMatt Delco discovered that the KVM hypervisor implementation in the Linux\nkernel did not properly perform bounds checking when handling coalesced\nMMIO write operations. A local attacker with write access to /dev/kvm could\nuse this to cause a denial of service (system crash). (CVE-2019-14821)\n\nHui Peng and Mathias Payer discovered that the USB audio driver for the\nLinux kernel did not properly validate device meta data. A physically\nproximate attacker could use this to cause a denial of service (system\ncrash). (CVE-2019-15117)\n\nHui Peng and Mathias Payer discovered that the USB audio driver for the\nLinux kernel improperly performed recursion while handling device meta\ndata. A physically proximate attacker could use this to cause a denial of\nservice (system crash). A physically proximate attacker\ncould use this to cause a denial of service (system crash) or possibly\nexpose sensitive information. A local attacker\ncould possibly use this to expose sensitive information. (CVE-2019-15902)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 14.04 ESM:\n linux-image-4.4.0-1056-aws 4.4.0-1056.60\n linux-image-4.4.0-166-generic 4.4.0-166.195~14.04.1\n linux-image-4.4.0-166-generic-lpae 4.4.0-166.195~14.04.1\n linux-image-4.4.0-166-lowlatency 4.4.0-166.195~14.04.1\n linux-image-4.4.0-166-powerpc-e500mc 4.4.0-166.195~14.04.1\n linux-image-4.4.0-166-powerpc-smp 4.4.0-166.195~14.04.1\n linux-image-4.4.0-166-powerpc64-emb 4.4.0-166.195~14.04.1\n linux-image-4.4.0-166-powerpc64-smp 4.4.0-166.195~14.04.1\n linux-image-aws 4.4.0.1056.57\n linux-image-generic-lpae-lts-xenial 4.4.0.166.145\n linux-image-generic-lts-xenial 4.4.0.166.145\n linux-image-lowlatency-lts-xenial 4.4.0.166.145\n linux-image-powerpc-e500mc-lts-xenial 4.4.0.166.145\n linux-image-powerpc-smp-lts-xenial 4.4.0.166.145\n linux-image-powerpc64-emb-lts-xenial 4.4.0.166.145\n linux-image-powerpc64-smp-lts-xenial 4.4.0.166.145\n linux-image-virtual-lts-xenial 4.4.0.166.145\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/4163-2\n https://usn.ubuntu.com/4163-1\n CVE-2016-10906, CVE-2017-18232, CVE-2018-21008, CVE-2019-14814,\n CVE-2019-14816, CVE-2019-14821, CVE-2019-15117, CVE-2019-15118,\n CVE-2019-15505, CVE-2019-15902\n. Please note that the RDS protocol is blacklisted in Ubuntu by\ndefault",
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