Bug 529597 – CVE-2009-3620 kernel: r128 IOCTL NULL pointer dereferences when CCE state is uninitialised

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Bug 529597 - (CVE-2009-3620) CVE-2009-3620 kernel: r128 IOCTL NULL pointer dereferences when CCE state is uninitialised

Summary:	CVE-2009-3620 kernel: r128 IOCTL NULL pointer dereferences when CCE state is ...

Status:	CLOSED ERRATA

Aliases:	CVE-2009-3620

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

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

URL:
Whiteboard:	impact=moderate,source=rt,reported=20...
Keywords:	Security

Depends On:	529598 529599 529600 529601 529602 529603 531630 537299
Blocks:
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Reported:	2009-10-19 00:52 EDT by Eugene Teo (Security Response)
Modified:	2016-03-04 06:18 EST (History)
CC List:	15 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Clones:	531630 (view as bug list)
Environment:
Last Closed:	2012-03-28 04:08:42 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2009:1540	normal	SHIPPED_LIVE	Important: kernel-rt security, bug fix, and enhancement update	2009-11-03 13:21:07 EST
Red Hat Product Errata	RHSA-2009:1670	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2009-12-15 12:18:47 EST
Red Hat Product Errata	RHSA-2009:1671	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2009-12-15 12:18:22 EST
Red Hat Product Errata	RHSA-2010:0882	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2010-11-12 04:36:39 EST

Groups: None (edit)

Description Eugene Teo (Security Response) 2009-10-19 00:52:04 EDT

Quoting from the upstream commit:
Almost all r128's private ioctls require that the CCE state has already been initialised.  However, most do not test that this has been done, and will proceed to dereference a null pointer.  This may result in a security vulnerability, since some ioctls are unprivileged.

This adds a macro for the common initialisation test and changes all ioctl implementations that require prior initialisation to use that macro.

Also, r128_do_init_cce() does not test that the CCE state has not been initialised already.  Repeated initialisation may lead to a crash or resource leak.  This adds that test.

http://git.kernel.org/linus/7dc482dfeeeefcfd000d4271c4626937406756d7

Other references:
http://secunia.com/advisories/36707/

Comment 3 errata-xmlrpc 2009-11-03 13:21:21 EST

This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2009:1540 https://rhn.redhat.com/errata/RHSA-2009-1540.html

Comment 4 Fedora Update System 2009-11-05 00:14:49 EST

kernel-2.6.27.38-170.2.113.fc10 has been submitted as an update for Fedora 10.
http://admin.fedoraproject.org/updates/kernel-2.6.27.38-170.2.113.fc10

Comment 5 Fedora Update System 2009-11-05 19:05:05 EST

kernel-2.6.27.38-170.2.113.fc10 has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 errata-xmlrpc 2009-12-15 12:18:26 EST

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2009:1671 https://rhn.redhat.com/errata/RHSA-2009-1671.html

Comment 8 errata-xmlrpc 2009-12-15 12:19:04 EST

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2009:1670 https://rhn.redhat.com/errata/RHSA-2009-1670.html

Comment 12 errata-xmlrpc 2010-11-12 04:37:08 EST

This issue has been addressed in following products:

  Red Hat Enterprise Linux 3 Extended Lifecycle Support

Via RHSA-2010:0882 https://rhn.redhat.com/errata/RHSA-2010-0882.html

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