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Published: 16/06/2010 Updated: 13/02/2023

CVSS v2 Base Score: 4.6 | Impact Score: 6.4 | Exploitability Score: 3.9

VMScore: 409

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and previous versions does not check file ownership before setting an ACL, which allows local users to bypass file permissions by setting arbitrary ACLs, as demonstrated using setfacl.

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linux linux kernel

Multiple security flaws ...

CWE-264 http://www.openwall.com/lists/oss-security/2010/06/11/3 http://lkml.org/lkml/2010/5/17/544 http://www.openwall.com/lists/oss-security/2010/06/14/2 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=2f26afba https://usn.ubuntu.com/966-1/https://nvd.nist.gov

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