Bug 1315795 (CVE-2016-1977, CVE-2016-2790, CVE-2016-2791, CVE-2016-2792, CVE-2016-2793, CVE-2016-2794, CVE-2016-2795, CVE-2016-2796, CVE-2016-2797, CVE-2016-2798, CVE-2016-2799, CVE-2016-2800, CVE-2016-2801, CVE-2016-2802)

Summary: graphite2: multiple font parsing vulnerabilities (Mozilla MFSA 2016-37)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: cschalle, jhorak, security-response-team, slawomir, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2016-03-28 05:24:46 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1313724    

Description Huzaifa S. Sidhpurwala 2016-03-08 15:32:15 UTC 
Security researcher Holger Fuhrmannek and Mozilla security engineer Tyson Smith reported a number of security vulnerabilities in the Graphite 2 library affecting version 1.3.5.

The issue reported by Holger Fuhrmannek is a mechanism to induce stack corruption with a malicious graphite font. This leads to a potentially exploitable crash when the font is loaded.

Tyson Smith used the Address Sanitizer tool in concert with a custom software fuzzer to find a series uninitialized memory, out-of-bounds read, and out-of-bounds write errors when working with fuzzed graphite fonts.

To address these security vulnerabilities, Firefox 45 and Firefox ESR 38.7 have been updated to Graphite 2 version 1.3.6. 


External Reference:

https://www.mozilla.org/security/announce/2016/mfsa2016-37.html


Acknowledgements:

Name: the Mozilla project
Upstream: Holger Fuhrmannek, Tyson Smith
Comment 1 errata-xmlrpc 2016-03-09 05:13:03 UTC 
This issue has been addressed in the following products:

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

Via RHSA-2016:0373 https://rhn.redhat.com/errata/RHSA-2016-0373.html
Comment 2 errata-xmlrpc 2016-03-16 17:37:45 UTC 
This issue has been addressed in the following products:

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

Via RHSA-2016:0460 https://rhn.redhat.com/errata/RHSA-2016-0460.html