CVE-2012-3520

Impact:
Important
Public Date:
2012-08-21
Bugzilla:
850449: CVE-2012-3520 kernel: af_netlink: invalid handling of SCM_CREDENTIALS passing

The MITRE CVE dictionary describes this issue as:

The Netlink implementation in the Linux kernel before 3.2.30 does not properly handle messages that lack SCM_CREDENTIALS data, which might allow local users to spoof Netlink communication via a crafted message, as demonstrated by a message to (1) Avahi or (2) NetworkManager.

Find out more about CVE-2012-3520 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5 and 6 as they did not backport the commit that introduced this issue. Future kernel updates for Red Hat Enterprise MRG 2 may address this issue.

CVSS v2 metrics

Base Score 4.4
Base Metrics AV:L/AC:M/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

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

Red Hat Security Errata

Platform Errata Release Date
Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2012:1491 2012-12-04

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Affected
Red Hat Enterprise Linux 6 kernel Not affected
Red Hat Enterprise Linux 5 kernel Not affected

Acknowledgements

Red Hat would like to thank Pablo Neira Ayuso for reporting this issue.

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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