CVE-2014-3144

Impact:
Moderate
Public Date:
2014-04-13
Bugzilla:
1096775: CVE-2014-3144 CVE-2014-3145 Kernel: filter: prevent nla extensions to peek beyond the end of the message

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2014-3144 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5.

CVSS v2 metrics

Base Score 5.4
Base Metrics AV:L/AC:M/Au:N/C:P/I:N/A:C
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (kernel) RHSA-2014:0981 2014-07-29
Red Hat Enterprise Linux 7 (kernel) RHSA-2014:0786 2014-06-24
MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2014:0913 2014-07-22

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Affected
Red Hat Enterprise Linux 5 kernel Not affected

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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