Out-of-Bounds Affecting kernel-livepatch-5_3_18-24_67-default package, versions <3-2.1
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Test your applications- Snyk ID SNYK-SLES152-KERNELLIVEPATCH53182467DEFAULT-3265769
- published 14 Apr 2022
- disclosed 17 Aug 2021
Introduced: 17 Aug 2021
CVE-2021-22543 Open this link in a new tabHow to fix?
Upgrade SLES:15.2 kernel-livepatch-5_3_18-24_67-default to version 3-2.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_3_18-24_67-default package and not the kernel-livepatch-5_3_18-24_67-default package as distributed by SLES.
See How to fix? for SLES:15.2 relevant fixed versions and status.
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.
References
- https://www.suse.com/security/cve/CVE-2021-22543.html
- https://bugzilla.suse.com/1186482
- https://bugzilla.suse.com/1186483
- https://bugzilla.suse.com/1190276
- https://bugzilla.suse.com/1197660
- https://github.com/google/security-research/security/advisories/GHSA-7wq5-phmq-m584
- http://www.openwall.com/lists/oss-security/2021/06/26/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ROQIXQB7ZAWI3KSGSHR6H5RDUWZI775S/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4G5YBUVEPHZYXMKNGBZ3S6INFCTEEL4E/
- https://security.netapp.com/advisory/ntap-20210708-0002/
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4G5YBUVEPHZYXMKNGBZ3S6INFCTEEL4E/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROQIXQB7ZAWI3KSGSHR6H5RDUWZI775S/