Bug 473463 – CVE-2008-5317 lcms: unsigned -> signed integer cast issue in cmsAllocGamma

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Bug 473463 - (CVE-2008-5317) CVE-2008-5317 lcms: unsigned -> signed integer cast issue in cmsAllocGamma

Summary:	CVE-2008-5317 lcms: unsigned -> signed integer cast issue in cmsAllocGamma

Status:	CLOSED ERRATA

Aliases:	CVE-2008-5317

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

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

URL:
Whiteboard:	source=internet,reported=20081014,pub...
Keywords:	Security

Depends On:	473469 473470 479384 833921
Blocks:
	Show dependency tree / graph

Reported:	2008-11-28 11:29 EST by Tomas Hoger
Modified:	2012-06-20 10:16 EDT (History)
CC List:	6 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2010-03-29 04:38:59 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Patch used in SuSE security updates (562 bytes, patch) 2008-11-28 11:30 EST, Tomas Hoger	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-2009:0011	normal	SHIPPED_LIVE	Moderate: lcms security update	2009-01-07 08:38:58 EST

Groups: None (edit)

Description Tomas Hoger 2008-11-28 11:29:20 EST

There was a unsigned -> signed integer cast issue in cmsAllocGamma
in src/cmsgamma.c.  The argument to this function - nEntries - may be
read from the file and not validated before cmsAllocGamma is called.
As nEntries in cmsAllocGamma is signed integer, its value may possibly
be negative and can result in an insufficient memory allocation.

This issue was fixed upstream in 1.17.

Upstream CVS commit:
http://lcms.cvs.sourceforge.net/viewvc/lcms/lcms/src/cmsgamma.c?view=diff&r1=1.16&r2=1.17

References:
http://www.openwall.com/lists/oss-security/2008/11/28/3

Comment 1 Tomas Hoger 2008-11-28 11:30:38 EST

Created attachment 325025 [details]
Patch used in SuSE security updates

This was extracted from SuSE liblcms-1.15-32.src.rpm.  Original name of the
patch was lcms-gamma-overflow.patch.

Comment 2 Tomas Hoger 2008-11-28 11:31:07 EST

Affected lcms versions are currently in Red Hat Enterprise Linux 5 and Fedora EPEL 4 (both based on upstream 1.15).

Comment 5 Tomas Hoger 2008-12-03 12:16:22 EST

CVE id CVE-2008-5317 was assigned to this issue:

Integer signedness error in the cmsAllocGamma function in
src/cmsgamma.c in Little cms color engine (aka lcms) before 1.17
allows attackers to have an unknown impact via a file containing a
certain "number of entries" value, which is interpreted improperly,
leading to an allocation of insufficient memory.

Comment 8 Tomas Hoger 2010-03-29 04:38:59 EDT

https://www.redhat.com/security/data/cve/CVE-2008-5317.html

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