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CVE-2017-5551

N/A

Description

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.

CVE Details

CVSS v3.1 ScoreN/A

Published2/6/2017

Last Modified4/20/2025

Sourcenvd

Honeypot Sightings0

Affected Products

linux:linux_kernel

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=497de07d89c1410d76a15bec2bb41f24a2a89f31(cve@mitre.org)

http://www.debian.org/security/2017/dsa-3791(cve@mitre.org)

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2017/01/21/3(cve@mitre.org)

http://www.securityfocus.com/bid/95717(cve@mitre.org)

http://www.securitytracker.com/id/1038053(cve@mitre.org)

https://bugzilla.redhat.com/show_bug.cgi?id=1416126(cve@mitre.org)

https://github.com/torvalds/linux/commit/497de07d89c1410d76a15bec2bb41f24a2a89f31(cve@mitre.org)

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=497de07d89c1410d76a15bec2bb41f24a2a89f31(af854a3a-2127-422b-91ae-364da2661108)

http://www.debian.org/security/2017/dsa-3791(af854a3a-2127-422b-91ae-364da2661108)

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6(af854a3a-2127-422b-91ae-364da2661108)

http://www.openwall.com/lists/oss-security/2017/01/21/3(af854a3a-2127-422b-91ae-364da2661108)

http://www.securityfocus.com/bid/95717(af854a3a-2127-422b-91ae-364da2661108)

http://www.securitytracker.com/id/1038053(af854a3a-2127-422b-91ae-364da2661108)

https://bugzilla.redhat.com/show_bug.cgi?id=1416126(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/torvalds/linux/commit/497de07d89c1410d76a15bec2bb41f24a2a89f31(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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