CVE-2009-2651

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-07-30 · updated 2026-06-16
Weakness: CWE-399

Description

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.

Affected products

Digium Asterisk: 1.6.1

References

http://downloads.asterisk.org/pub/security/AST-2009-004.html
http://downloads.digium.com/pub/security/AST-2009-004-1.6.1.diff.txt
http://osvdb.org/56571
http://secunia.com/advisories/36039
http://www.securityfocus.com/bid/35837
http://www.securitytracker.com/id?1022608
http://www.vupen.com/english/advisories/2009/2067
https://exchange.xforce.ibmcloud.com/vulnerabilities/52046
http://downloads.asterisk.org/pub/security/AST-2009-004.html
http://downloads.digium.com/pub/security/AST-2009-004-1.6.1.diff.txt
http://osvdb.org/56571
http://secunia.com/advisories/36039

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