Bug 971443 (CVE-2013-2154)

Summary: CVE-2013-2154 xml-security-c: Stack-based buffer overflow when evaluating certain XPointer expressions
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: xml-security-c-1.7.1 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-08-22 15:49:48 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 975304, 975305    
Bug Blocks: 971467    

Description Jan Lieskovsky 2013-06-06 14:18:22 UTC 
A stack-based buffer overflow flaw was found in the way XML Signature Reference processing code of Apache Santuario-C++ (AKA xml-security-c), a C++ language implementation of W3C security standards for XML, performed evaluation of certain XPointer expressions (a fixed size buffer was previously allocated regardless of the actual XPointer expression length). A remote attacker could provide a specially-crafted XPointer expression to the application linked against xml-security-c performing signature verification that, when processed would lead to that application crash.

Upstream advisory:
[1] http://santuario.apache.org/secadv.data/CVE-2013-2154.txt

Relevant patch:
[2] http://svn.apache.org/viewvc?view=revision&revision=r1493959

Acknowledgements:

Red Hat would like to thank Scott Cantor of Apache Santuario-C++ upstream for reporting of this issue. Upstream acknowledges James Forshaw of Context Information Security as the original issue reporter.
Comment 2 Jan Lieskovsky 2013-06-06 14:20:52 UTC 
This issue affects the versions of the xml-security-c package, as shipped with Fedora release of 17 and 18.

--

This issue affects the versions of the xml-security-c package, as shipped with Fedora EPEL-5 and Fedora EPEL-6.
Comment 3 Huzaifa S. Sidhpurwala 2013-06-18 04:17:49 UTC 
Public via:

http://santuario.apache.org/secadv.data/CVE-2013-2154.txt
Comment 4 Huzaifa S. Sidhpurwala 2013-06-18 04:22:46 UTC 
Created xml-security-c tracking bugs for this issue

Affects: fedora-all [bug 975304]
Affects: epel-all [bug 975305]