Out-of-bounds Write Affecting kernel-debuginfo-common-x86_64 package, versions <0:4.14.146-119.123.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNELDEBUGINFOCOMMONX8664-1674265
- published 27 Sep 2021
- disclosed 19 Sep 2019
Introduced: 19 Sep 2019
CVE-2019-14821 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel-debuginfo-common-x86_64 to version 0:4.14.146-119.123.amzn2 or higher.
This issue was patched in ALAS2-2019-1293.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debuginfo-common-x86_64 package and not the kernel-debuginfo-common-x86_64 package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvm_coalesced_mmio' object, wherein write indices 'ring->first' and 'ring->last' value could be supplied by a host user-space process. An unprivileged host user or process with access to '/dev/kvm' device could use this flaw to crash the host kernel, resulting in a denial of service or potentially escalating privileges on the system.
References
- https://seclists.org/bugtraq/2019/Nov/11
- https://seclists.org/bugtraq/2019/Sep/41
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14821
- https://security.netapp.com/advisory/ntap-20191004-0001/
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14821
- https://www.debian.org/security/2019/dsa-4531
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TRZQQQANZWQMPILZV7OTS3RGGRLLE2Q7/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html
- http://www.openwall.com/lists/oss-security/2019/09/20/1
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://access.redhat.com/errata/RHSA-2019:3309
- https://access.redhat.com/errata/RHSA-2019:3517
- https://access.redhat.com/errata/RHSA-2019:3978
- https://access.redhat.com/errata/RHSA-2019:3979
- https://access.redhat.com/errata/RHSA-2019:4154
- https://access.redhat.com/errata/RHSA-2019:4256
- https://access.redhat.com/errata/RHSA-2020:0027
- https://access.redhat.com/errata/RHSA-2020:0204
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html
- https://usn.ubuntu.com/4157-1/
- https://usn.ubuntu.com/4157-2/
- https://usn.ubuntu.com/4162-1/
- https://usn.ubuntu.com/4162-2/
- https://usn.ubuntu.com/4163-1/
- https://usn.ubuntu.com/4163-2/
- https://access.redhat.com/errata/RHSA-2020:2851
- https://access.redhat.com/security/cve/CVE-2019-14821
- https://bugzilla.redhat.com/show_bug.cgi?id=1746708
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TRZQQQANZWQMPILZV7OTS3RGGRLLE2Q7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/