Public Date:
690028: CVE-2011-1182 kernel signal spoofing issue

The MITRE CVE dictionary describes this issue as:

kernel/signal.c in the Linux kernel before 2.6.39 allows local users to spoof the uid and pid of a signal sender via a sigqueueinfo system call.

Find out more about CVE-2011-1182 from the MITRE CVE dictionary dictionary and NIST NVD.


Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle,, therefore the fix for this issue is not currently planned to be included in the future updates. This was addressed in Red Hat Enterprise Linux 5 and 6 via and A future kernel update in Red Hat Enterprise MRG may address this flaw.

Red Hat Enterprise MRG 1.3:
This vulnerability has been rated as having a security impact of Low. After evaluation and in accordance with the criteria noted in the product support life cycle, there are no plans to address this issue in an upcoming release. Please contact Red Hat Support for further information.

CVSS v2 metrics

Base Score 3.6
Base Metrics AV:L/AC:L/Au:N/C:N/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
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 Enterprise Linux Server EUS (v. 6.0) (kernel) RHSA-2011:0883 2011-06-21
Red Hat Enterprise Linux 6 (kernel) RHSA-2011:1189 2011-08-23
Red Hat Enterprise Linux 5 (kernel) RHSA-2011:0927 2011-07-15

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 1.3 realtime-kernel Will not fix
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.


Red Hat would like to thank Julien Tinnes of Google Security Team for reporting this issue.
Last Modified

CVE description copyright © 2017, The MITRE Corporation