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cve/2017/CVE-2017-5551.md
0xMarcio 49bdc782b3 Update Sun May 26 14:27:04 CEST 2024
2024-05-26 14:27:05 +02:00

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CVE-2017-5551

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.

POC

Reference

No PoCs from references.

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