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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2014-05-11T21:00:00

Updated: 2024-08-06T10:35:56.534Z

Reserved: 2014-05-02T00:00:00

Link: CVE-2014-3144

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2014-05-11T21:55:06.123

Modified: 2024-11-21T02:07:31.943

Link: CVE-2014-3144

cve-icon Redhat

Severity : Moderate

Publid Date: 2014-04-13T00:00:00Z

Links: CVE-2014-3144 - Bugzilla