CVE-2010-2071

MEDIUM

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

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2f26afba

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

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

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

Details

Source: MITRE

Published: 2010-06-16

Updated: 2020-08-06

Type: CWE-264

Risk Information

CVSS v2.0

Base Score: 4.6

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

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM