CVE-2010-2071

high

Description

The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and earlier 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.

References

Advisories
More

http://www.openwall.com/lists/oss-security/2010/06/14/2

http://www.openwall.com/lists/oss-security/2010/06/11/3

https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-2090

http://lkml.org/lkml/2010/5/17/544

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=2f26afba

Details

Source: Mitre, NVD

Published: 2010-06-16

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Severity: High

EPSS

EPSS: 0.00049