Bug 455848 (CVE-2008-2935)

Summary: CVE-2008-2935 libxslt: buffer overflow in libexslt RC4 encryption/decryption functions
Product: [Other] Security Response Reporter: Tomas Hoger <thoger>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: azelinka, kreilly, skakar, veillard
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2008-08-08 06:46:15 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 456230, 456231, 456232, 456233, 833936    
Bug Blocks:    
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Description Flags
Upstream patch none

Description Tomas Hoger 2008-07-18 09:56:25 UTC 
oCERT reported a libxslt vulnerability discovered by Chris Evans of the Google
Security Team:

The libexslt library bundled with libxslt is affected by a heap-based buffer
overflow which can lead to arbitrary code execution.

The vulnerability is present in the rc4 encryption/decryption functions. An
arbitrary length string, passed as an argument in the XSL input, is incorrectly
copied over a padding variable which is previously allocated with a fixed size
of 128bit (RC4_KEY_LENGTH).

Affected version: libxslt >= 1.1.8, <= 1.1.24

Acknowledgements:

Red Hat would like to thank Chris Evans and oCERT for reporting this vulnerability.
Comment 1 Tomas Hoger 2008-07-18 09:57:48 UTC 
Created attachment 312112 [details]
Upstream patch
Comment 7 Josh Bressers 2008-07-31 15:06:01 UTC 
This is now public:
http://www.ocert.org/advisories/ocert-2008-009.html
Comment 8 Fedora Update System 2008-08-07 23:51:44 UTC 
libxslt-1.1.24-2.fc8 has been pushed to the Fedora 8 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 9 Fedora Update System 2008-08-07 23:53:46 UTC 
libxslt-1.1.24-2.fc9 has been pushed to the Fedora 9 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 10 Red Hat Product Security 2008-08-08 06:46:15 UTC 
This issue was addressed in:

Red Hat Enterprise Linux:
  http://rhn.redhat.com/errata/RHSA-2008-0649.html

Fedora:
  https://admin.fedoraproject.org/updates/F8/FEDORA-2008-7029
  https://admin.fedoraproject.org/updates/F9/FEDORA-2008-7062