CVE-2011-4110

Impact:
Moderate
Public Date:
2011-11-15
IAVA:
2012-A-0148, 2012-A-0153
CWE:
CWE-476
Bugzilla:
751297: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type

The MITRE CVE dictionary describes this issue as:

The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and "updating a negative key into a fully instantiated key."

Find out more about CVE-2011-4110 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue affects the Linux kernel as shipped with Red Hat Enterprise Linux 4,
5, 6, and Red Hat Enterprise MRG. This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1479.html, https://rhn.redhat.com/errata/RHSA-2011-1530.html, and https://rhn.redhat.com/errata/RHSA-2012-0010.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.

CVSS v2 metrics

Base Score 4.9
Base Metrics AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
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-2011:1530 2011-12-05
Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2012:0333 2012-02-23
Red Hat Enterprise Linux 5 (kernel) RHSA-2011:1479 2011-11-29
Red Hat Enterprise Linux Server EUS (v. 6.1) (kernel) RHSA-2012:0116 2012-02-15
Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2012:0010 2012-01-10

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Affected
Red Hat Enterprise Linux 4 kernel Affected

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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