6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
5.3%
The Btrfs implementation in the Linux kernel before 3.19 does not ensure that the visible xattr state is consistent with a requested replacement, which allows local users to bypass intended ACL settings and gain privileges via standard filesystem operations (1) during an xattr-replacement time window, related to a race condition, or (2) after an xattr-replacement attempt that fails because the data does not fit.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | linux | < 3.16.7-ckt9-1 | linux_3.16.7-ckt9-1_all.deb |
Debian | 11 | all | linux | < 3.16.7-ckt9-1 | linux_3.16.7-ckt9-1_all.deb |
Debian | 10 | all | linux | < 3.16.7-ckt9-1 | linux_3.16.7-ckt9-1_all.deb |
Debian | 999 | all | linux | < 3.16.7-ckt9-1 | linux_3.16.7-ckt9-1_all.deb |
Debian | 13 | all | linux | < 3.16.7-ckt9-1 | linux_3.16.7-ckt9-1_all.deb |