Vulnerability Note VU#337238

Overview

Red Hat Enterprise Linux kernel prior to version 2.4.21 does not perform adequate checking of eflags when in 32-bit ptrace emulation mode. This could allow a local user to gain elevated or root privileges.

Description

The Linux kernel handles the basic functionality of the operating system. There is a vulnerability in the checking of eflags when in 32-bit ptrace emulation mode allowing a local user to gain elevated or root privileges. This vulnerability is reported to only affect kernels built for the AMD64 architecture.

Impact

A local user could gain elevated or root privileges.

Solution

Upgrade or Apply Patch Upgrade or apply patch as specified by your vendor.

Systems Affected (Learn More)

Vendor	Status	Date Notified	Date Updated
Red Hat Inc.	Affected	-	20 Jan 2004

If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group	Score	Vector
Base	N/A	N/A
Temporal	N/A	N/A
Environmental	N/A	N/A

References

• https://rhn.redhat.com/errata/RHSA-2004-017.html
• http://www.secunia.com/advisories/10658/
• http://www.ciac.org/ciac/bulletins/o-063.shtml

Credit

Thanks to Red Hat Inc. for the information contained in their advisory.

This document was written by Damon Morda.

Other Information

• CVE IDs: CAN-2004-0001
• Date Public: 16 Jan 2004
• Date First Published: 20 Jan 2004
• Date Last Updated: 20 Jan 2004
• Severity Metric: 2.95
• Document Revision: 12