Bug 1308590 (CVE-2016-1526)

Summary:	CVE-2016-1526 graphite2: Out-of-bounds read vulnerability in TfUtil:LocaLookup
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	akjain, caolanm, carnil, jhorak, jwalter, ngalvin, scorneli, stransky, vanoudt
Target Milestone:	---	Keywords:	Reopened, Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	A vulnerability has been discovered in Graphite2. An attacker able to trick an unsuspecting user into opening specially crafted font files in an application using Graphite2 could exploit these flaws to cause the application to crash or, potentially, execute arbitrary code with the privileges of the application.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-10-28 13:19:05 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	1308591, 1309052, 1309053
Bug Blocks:	1305678

Description Adam Mariš 2016-02-15 14:57:30 UTC

It was found that specially crafted font can cause an out-of-bounds read potentially resulting in an information leak or denial of service. An attacker can provide a malicious font to trigger this vulnerability. When reading an invalid font where the loca table size is set to 0 an out of bounds read will occur.

External Reference:

http://www.talosintel.com/reports/TALOS-2016-0061/

Comment 1 Adam Mariš 2016-02-15 14:58:03 UTC

Created graphite2 tracking bugs for this issue:

Affects: fedora-all [bug 1308591]

Comment 3 errata-xmlrpc 2016-04-05 19:10:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:0594 https://rhn.redhat.com/errata/RHSA-2016-0594.html