CVE Database


Impact: Important
Public: 2011-01-19
Bugzilla: 672398: CVE-2011-0521 kernel: av7110 negative array offset
IAVA: 2011-A-0147


The MITRE CVE dictionary describes this issue as:

The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel before 2.6.38-rc2 does not check the sign of a certain integer field, which allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a negative value.

Find out more about CVE-2011-0521 from the MITRE CVE dictionary and NIST NVD.


Red Hat is aware of this issue and is tracking it via the following bug:
This issue did not affect the version of the Linux kernel as shipped with Red Hat Enterprise Linux 3 as it did not include support for ULE (Unidirectional Lightweight Encapsulation). We have included a fix for this issue in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG however the affected module is not build by default.

CVSS v2 metrics

Base Score: 6.9
Base Metrics: AV:L/AC:M/Au:N/C:C/I:C/A:C
Access Vector: Local
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Complete
Integrity Impact: Complete
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 5 Server (kernel-rt) RHSA-2011:0330 March 10, 2011
Red Hat Enterprise Linux version 4 (kernel) RHSA-2011:0263 February 16, 2011
Red Hat Enterprise Linux version 5 (kernel) RHSA-2011:0429 April 12, 2011
Red Hat Enterprise Linux version 6 (kernel) RHSA-2011:0421 April 08, 2011

External References

This page is generated automatically and has not been checked for errors or omissions.

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