5.3 Medium
AI Score
Confidence
High
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
33.6%
The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 do not check whether a certain length value is sufficiently large, which allows local users to cause a denial of service (integer underflow and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr and __skb_get_nlattr_nest functions before the vulnerability was announced.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | linux | < 3.14.4-1 | linux_3.14.4-1_all.deb |
Debian | 11 | all | linux | < 3.14.4-1 | linux_3.14.4-1_all.deb |
Debian | 10 | all | linux | < 3.14.4-1 | linux_3.14.4-1_all.deb |
Debian | 999 | all | linux | < 3.14.4-1 | linux_3.14.4-1_all.deb |
Debian | 13 | all | linux | < 3.14.4-1 | linux_3.14.4-1_all.deb |