Bug 140710 – CAN-2004-1068 Missing serialisation in unix_dgram_recvmsg

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Bug 140710 - CAN-2004-1068 Missing serialisation in unix_dgram_recvmsg

Summary:	CAN-2004-1068 Missing serialisation in unix_dgram_recvmsg

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 3
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	3.0
Hardware:	All Linux

Priority	medium Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	David Miller
QA Contact:	Brian Brock
Docs Contact:

URL:
Whiteboard:	impact=important,public=20041115
Keywords:	Security

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2004-11-24 08:06 EST by Mark J. Cox
Modified:	2007-11-30 17:07 EST (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2004-12-09 21:59:21 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2004:549	normal	SHIPPED_LIVE	Important: kernel security update	2004-12-02 00:00:00 EST

Groups: None (edit)

Description Mark J. Cox 2004-11-24 08:06:42 EST

According to isec.pl on Nov19:
        "There is a subtle race condition finally permitting a
        non-root user to increment (up to 256 times) any arbitrary
        location(s) in kernel space.  The condition is not easy to
        exploit since an attacker must trick kmalloc() to sleep on
        allocation of a special chunk of memory and then convince the
        scheduler to execute another thread. But it is feasible."

http://linux.bkbits.net:8080/linux-2.4/cset@4199284dnTPrPLR-yhP_rOBHXJlltA
Therefore fixed in 2.4.28
http://linux.bkbits.net:8080/linux-2.6/cset@419927f5Wy2IOKwcqE2S3DTNYSmCqQ
Therefore will be fixed in 2.6.10

CVE name applied for

Comment 1 Ernie Petrides 2004-11-24 20:33:33 EST

A fix for this problem has just been committed to the RHEL3 E4
patch pool this evening (in kernel version 2.4.21-20.0.1.EL).

I'm leaving this in ASSIGNED state until the fix is also
propagated to the RHEL3 U4 and U5 patch pools.

Comment 2 Ernie Petrides 2004-12-01 21:55:52 EST

A fix for this problem has just been committed to the RHEL3 U4
patch pool this evening (in kernel version 2.4.21-27.EL).

I'm leaving this in ASSIGNED state until the fix is also
propagated to the RHEL3 U5 patch pool.

Comment 3 Mark J. Cox 2004-12-02 06:43:35 EST

http://rhn.redhat.com/errata/RHSA-2004-549.html

Comment 4 Ernie Petrides 2004-12-09 21:59:21 EST

A fix for this problem has just been committed to the RHEL3 U5
patch pool this evening (in kernel version 2.4.21-27.3.EL).

Work on this problem has now been completed.

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