Bug 514953 (CVE-2009-2651)

Summary: CVE-2009-2651 asterisk: remote DoS on receipt of malformed RTP text frames
Product: [Other] Security Response Reporter: Vincent Danen <vdanen>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: jeff
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
URL: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-2651
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-10-27 18:20:45 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: 514954    
Bug Blocks:    

Description Vincent Danen 2009-07-31 16:17:27 UTC
Common Vulnerabilities and Exposures assigned an identifier CVE-2009-2651 to
the following vulnerability:

Name: CVE-2009-2651
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2651
Assigned: 20090730
Reference: MISC: http://downloads.digium.com/pub/security/AST-2009-004-1.6.1.diff.txt
Reference: CONFIRM: http://downloads.asterisk.org/pub/security/AST-2009-004.html
Reference: BID:35837
Reference: URL: http://www.securityfocus.com/bid/35837
Reference: OSVDB:56571
Reference: URL: http://osvdb.org/56571
Reference: SECTRACK:1022608
Reference: URL: http://www.securitytracker.com/id?1022608
Reference: SECUNIA:36039
Reference: URL: http://secunia.com/advisories/36039
Reference: VUPEN:ADV-2009-2067
Reference: URL: http://www.vupen.com/english/advisories/2009/2067
Reference: XF:asterisk-rtp-dos(52046)
Reference: URL: http://xforce.iss.net/xforce/xfdb/52046

main/rtp.c in Asterisk Open Source 1.6.1 before 1.6.1.2 allows remote
attackers to cause a denial of service (crash) via an RTP text frame
without a certain delimiter, which triggers a NULL pointer dereference
and the subsequent calculation of an invalid pointer.


Note: the upstream advisory indicates that only 1.6.1.x is affected, so this only affects Fedora 11 and rawhide (Fedora 10 has 1.6.0.5).  Upstream patch to correct the issue:

http://downloads.digium.com/pub/security/AST-2009-004-1.6.1.diff.txt

Also note that 1.6.1.2 release corrects this issue as well.

Comment 1 Vincent Danen 2009-07-31 16:17:42 UTC
Created asterisk tracking bugs for this issue

CVE-2009-2651 Affects: Fdevel [bug #514954]

Comment 2 Fedora Update System 2009-09-25 20:09:37 UTC
asterisk-1.6.1.6-1.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.