Bug 514953 - (CVE-2009-2651) CVE-2009-2651 asterisk: remote DoS on receipt of malformed RTP text frames
CVE-2009-2651 asterisk: remote DoS on receipt of malformed RTP text frames
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
high Severity high
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Assigned To: Red Hat Product Security
: Security
Depends On: 514954
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Reported: 2009-07-31 12:17 EDT by Vincent Danen
Modified: 2009-10-27 14:20 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2009-10-27 14:20:45 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Vincent Danen 2009-07-31 12:17:27 EDT
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 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  Upstream patch to correct the issue:


Also note that release corrects this issue as well.
Comment 1 Vincent Danen 2009-07-31 12:17:42 EDT
Created asterisk tracking bugs for this issue

CVE-2009-2651 Affects: Fdevel [bug #514954]
Comment 2 Fedora Update System 2009-09-25 16:09:37 EDT
asterisk- has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

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