Bug 493771 – CVE-2009-1337 kernel: exit_notify: kill the wrong capable(CAP_KILL) check

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Bug 493771 - (CVE-2009-1337) CVE-2009-1337 kernel: exit_notify: kill the wrong capable(CAP_KILL) check

Summary:	CVE-2009-1337 kernel: exit_notify: kill the wrong capable(CAP_KILL) check

Status:	CLOSED ERRATA

Aliases:	CVE-2009-1337

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	high Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	public=20090225,source=lkml,reported=...
Keywords:	Security

Depends On:	494267 494268 494269 494270 494271 497266
Blocks:
	Show dependency tree / graph

Reported:	2009-04-02 21:58 EDT by Eugene Teo (Security Response)
Modified:	2010-12-21 12:59 EST (History)
CC List:	12 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2010-12-21 12:59:40 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)
Upsream patch (1.22 KB, patch) 2009-04-07 01:33 EDT, Eugene Teo (Security Response)	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2009:0451	normal	SHIPPED_LIVE	Important: kernel-rt security and bug fix update	2009-04-29 05:28:23 EDT
Red Hat Product Errata	RHSA-2009:0473	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2009-05-07 06:53:11 EDT
Red Hat Product Errata	RHSA-2009:1024	normal	SHIPPED_LIVE	Important: Red Hat Enterprise Linux 4.8 kernel security and bug fix update	2009-05-18 10:57:26 EDT
Red Hat Product Errata	RHSA-2009:1077	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2009-06-02 12:48:01 EDT
Red Hat Product Errata	RHSA-2009:1550	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2009-11-03 16:59:47 EST

Groups: None (edit)

Description Eugene Teo (Security Response) 2009-04-02 21:58:39 EDT

Description of problem:
A malicious application can execute a setuid binary before exit. This would mean that we will not reset the ->exit_signal to SIGCHLD unless the binary drops CAP_KILL.

Reference:
http://marc.info/?l=linux-kernel&m=123560588713763&w=2

Comment 5 Eugene Teo (Security Response) 2009-04-06 23:52:20 EDT

[RESEND] exit_notify: kill the wrong capable(CAP_KILL) check
http://patchwork.kernel.org/patch/16544/

Comment 6 Eugene Teo (Security Response) 2009-04-07 01:33:27 EDT

Created attachment 338457 [details]
Upsream patch

Upstream commit:
http://git.kernel.org/linus/432870dab85a2f69dc417022646cb9a70acf7f94

Comment 11 Eugene Teo (Security Response) 2009-04-23 01:12:11 EDT

Upstream commit for 2.4
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.37.y.git;a=commitdiff;h=8d1f2ab731ab54b12f82eed4da4d1cefd238578c

Comment 12 errata-xmlrpc 2009-04-29 05:28:34 EDT

This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2009:0451 https://rhn.redhat.com/errata/RHSA-2009-0451.html

Comment 14 errata-xmlrpc 2009-05-07 06:53:18 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2009:0473 https://rhn.redhat.com/errata/RHSA-2009-0473.html

Comment 15 errata-xmlrpc 2009-05-18 15:03:06 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2009:1024 https://rhn.redhat.com/errata/RHSA-2009-1024.html

Comment 16 errata-xmlrpc 2009-05-18 16:36:20 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2009:1024 https://rhn.redhat.com/errata/RHSA-2009-1024.html

Comment 17 Chuck Ebbert 2009-05-21 13:16:59 EDT

Fixed in upstream stable updates: 2.6.27.22, 2.6.28.10 and 2.6.29.3

Comment 20 Fedora Update System 2009-05-22 05:01:46 EDT

kernel-2.6.27.24-170.2.68.fc10 has been submitted as an update for Fedora 10.
http://admin.fedoraproject.org/updates/kernel-2.6.27.24-170.2.68.fc10

Comment 25 Fedora Update System 2009-05-25 17:09:20 EDT

kernel-2.6.27.24-170.2.68.fc10 has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 29 errata-xmlrpc 2009-06-02 12:28:07 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4.7 Z Stream

Via RHSA-2009:1077 https://rhn.redhat.com/errata/RHSA-2009-1077.html

Comment 32 errata-xmlrpc 2009-11-03 17:03:11 EST

This issue has been addressed in following products:

  Red Hat Enterprise Linux 3

Via RHSA-2009:1550 https://rhn.redhat.com/errata/RHSA-2009-1550.html

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