Amazon Linux AMI: CVE-2017-5551: Security patch for kernel (ALAS-2017-805)
4
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
01/30/2017
07/25/2018
03/07/2017
10/14/2022
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.
Solution(s)
- amazon-linux-upgrade-kernel
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