Use After Free Affecting kernel-abi-whitelists package, versions <0:3.10.0-693.64.1.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-KERNELABIWHITELISTS-4808345
- published1 Nov 2021
- disclosed15 May 2018
Introduced: 15 May 2018
CVE-2018-20976 (opens in a new tab)How to fix?
Upgrade RHEL:7 kernel-abi-whitelists to version 0:3.10.0-693.64.1.el7 or higher.
This issue was patched in RHSA-2020:0592.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-abi-whitelists package and not the kernel-abi-whitelists package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure.
References
- https://seclists.org/bugtraq/2019/Nov/11
- https://security.netapp.com/advisory/ntap-20190905-0002/
- https://support.f5.com/csp/article/K10269585?utm_source=f5support&utm_medium=RSS
- https://access.redhat.com/security/cve/CVE-2018-20976
- 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82
- https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://access.redhat.com/errata/RHSA-2020:0592
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
- https://usn.ubuntu.com/4144-1/
- https://usn.ubuntu.com/4145-1/
- https://support.f5.com/csp/article/K10269585?utm_source=f5support&%3Butm_medium=RSS