Improper Authentication The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)
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-KERNELHEADERS-4711258
- published26 Jul 2021
- disclosed9 Jan 2017
Introduced: 9 Jan 2017
CVE-2017-5551 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:7.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.
The simple_set_acl function in fs/posix_acl.c in the Linux kernel before 4.9.6 preserves the setgid bit during a setxattr call involving a tmpfs filesystem, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-7097.
References
- http://www.securityfocus.com/bid/95717
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=497de07d89c1410d76a15bec2bb41f24a2a89f31
- https://bugzilla.redhat.com/show_bug.cgi?id=1416126
- https://github.com/torvalds/linux/commit/497de07d89c1410d76a15bec2bb41f24a2a89f31
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6
- https://access.redhat.com/security/cve/CVE-2017-5551
- http://www.debian.org/security/2017/dsa-3791
- http://www.openwall.com/lists/oss-security/2017/01/21/3
- https://access.redhat.com/errata/RHSA-2017:1842
- http://www.securitytracker.com/id/1038053