CVE Database


Impact: Moderate
Public: 2009-10-01
Bugzilla: 526788: CVE-2009-2910 kernel: x86_64 32 bit process register leak
IAVA: 2010-A-0015


The MITRE CVE dictionary describes this issue as:

arch/x86/ia32/ia32entry.S in the Linux kernel before on the x86_64 platform does not clear certain kernel registers before a return to user mode, which allows local users to read register values from an earlier process by switching an ia32 process to 64-bit mode.

Find out more about CVE-2009-2910 from the MITRE CVE dictionary and NIST NVD.


Red Hat is aware of this issue and is tracking it via the following bug:
It has been rated as having moderate security impact.
It was addressed in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG via: , and respectively.
This issue is not planned to be fixed in Red Hat Enterprise Linux 3, due to this product being in Production 3 of its maintenance life-cycle, where only qualified security errata of important and critical impact are addressed.
For further information about Errata Support Policy, visit:

CVSS v2 metrics

Base Score: 2.1
Base Metrics: AV:L/AC:L/Au:N/C:P/I:N/A:N
Access Vector: Local
Access Complexity: Low
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: None
Availability Impact: None

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-2009:1540 November 03, 2009
Red Hat Enterprise Linux version 4 (kernel) RHSA-2009:1671 December 15, 2009
Red Hat Enterprise Linux version 5 (kernel) RHSA-2010:0046 January 19, 2010

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.