Bug 649693 (CVE-2010-3873)

Summary: CVE-2010-3873 kernel: memory corruption in X.25 facilities parsing
Product: [Other] Security Response Reporter: Eugene Teo (Security Response) <eteo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: lwang, pmatouse
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2016-06-10 18:32:45 EDT Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Description Eugene Teo (Security Response) 2010-11-04 06:19:43 EDT
Description of problem:
Due to bad parsing of malformed X.25 facilities, a remote attacker can
cause a kernel panic due to heap corruption (assuming both parties are
communicating using X.25).

Reference:
http://www.spinics.net/lists/netdev/msg145786.html
http://www.spinics.net/lists/netdev/msg145873.html

Acknowledgements:

Red Hat would like to thank Dan Rosenberg for reporting this issue.
Comment 1 Petr Matousek 2010-11-08 15:16:53 EST
Statement:

This issue did not affect the version of Linux kernel as shipped with Red Hat
Enterprise Linux 3, 4, 5, and Red Hat Enterprise MRG as they did not include
support for CCITT X.25 Packet Layer.
Comment 2 Eugene Teo (Security Response) 2010-11-22 08:21:39 EST
Upstream commit:
http://git.kernel.org/linus/a6331d6f9a4298173b413cf99a40cc86a9d92c37