Bug 159917

Summary:	CVE-2005-0756 x86_64 crash (ptrace-check-segment)
Product:	Red Hat Enterprise Linux 3	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Ernie Petrides <petrides>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	3.0	CC:	ezannoni, jparadis, peterm, petrides, roland, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:	impact=important,source=vendorsec,public=20050517
Fixed In Version:	RHSA-2005-663	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-09-28 15:18:42 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	156320

Description Mark J. Cox 2005-06-09 09:33:53 UTC

The following upstream patch fixes canonical checking for segment registers in
ptrace.  This allowed user programs to set a non canonical segment which would
cause oopses in the kernel later.
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f6b8d4778c04148729cc0b0dcd335a4411c44276

Comment 5 Ernie Petrides 2005-06-10 21:53:57 UTC

Reassigning this to myself.

Comment 6 Ernie Petrides 2005-06-11 01:43:58 UTC

Patch posted for review on 10-Jun-2005.

Comment 7 Mark J. Cox 2005-06-13 09:29:11 UTC

Actually CAN-2005-0756, fixing CVE name

Comment 9 Ernie Petrides 2005-06-15 01:06:07 UTC

A fix for this problem has just been committed to the RHEL3 U6
patch pool this evening (in kernel version 2.4.21-32.8.EL).

Comment 15 Red Hat Bugzilla 2005-09-28 15:18:42 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2005-663.html