CVE Database

CVE-2014-3145

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

Details

The MITRE CVE dictionary describes this issue as:

The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows local users to cause a denial of service (over-read and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced.

Find out more about CVE-2014-3145 from the MITRE CVE 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
MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2014:0913 July 22, 2014
Red Hat Enterprise Linux version 6 (kernel) RHSA-2014:0981 July 29, 2014
Red Hat Enterprise Linux version 7 (kernel) RHSA-2014:0786 June 24, 2014

External References

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For clarification or corrections please contact the Red Hat Security Response Team.