Bug 1305810 (CVE-2016-1522)

Summary: CVE-2016-1522 graphite2: Null pointer dereference and out-of-bounds access vulnerabilities
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: caolanm, carnil, slawomir, vanoudt
Target Milestone: ---Keywords: 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: 2016-06-01 19:20:05 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: 1305811, 1309052, 1309053    
Bug Blocks: 1305678    

Description Adam Mariš 2016-02-09 10:05:16 UTC 
Exploitable NULL pointer dereference and out-of-bound access vulnerabilities were found in the bidirectional font handling functionality of Libgraphite. A specially crafted font can cause out-of-bound access resulting into remote code execution and NULL pointer dereference resulting into crash. An attacker can provide a malicious font to trigger this vulnerability.

External References:

http://www.talosintel.com/reports/TALOS-2016-0060/
http://www.talosintel.com/reports/TALOS-2016-0057/
Comment 1 Adam Mariš 2016-02-09 10:06:16 UTC 
Created graphite2 tracking bugs for this issue:

Affects: fedora-all [bug 1305811]
Comment 3 errata-xmlrpc 2016-02-16 10:41:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2016:0197 https://rhn.redhat.com/errata/RHSA-2016-0197.html
Comment 5 errata-xmlrpc 2016-04-05 19:09:49 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