CVE-2009-2726
- Source
- https://cve.org/CVERecord?id=CVE-2009-2726
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2009-2726.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2009-2726
- Downstream
- Withdrawn
- 2026-01-27T04:09:54.288244Z
- Published
- 2009-08-12T10:30:01Z
- Modified
- 2026-01-27T04:09:54.288244Z
- Summary
- [none]
- Details
-
The SIP channel driver in Asterisk Open Source 1.2.x before 1.2.34, 1.4.x before 1.4.26.1, 1.6.0.x before 1.6.0.12, and 1.6.1.x before 1.6.1.4; Asterisk Business Edition A.x.x, B.x.x before B.2.5.9, C.2.x before C.2.4.1, and C.3.x before C.3.1; and Asterisk Appliance s800i 1.2.x before 1.3.0.3 does not use a maximum width when invoking sscanf style functions, which allows remote attackers to cause a denial of service (stack memory consumption) via SIP packets containing large sequences of ASCII decimal characters, as demonstrated via vectors related to (1) the CSeq value in a SIP header, (2) large Content-Length value, and (3) SDP.
- References
-
- http://labs.mudynamics.com/advisories/MU-200908-01.txt
- http://secunia.com/advisories/36227
- http://www.securityfocus.com/archive/1/505669/100/0/threaded
- http://www.securityfocus.com/bid/36015
- http://www.securitytracker.com/id?1022705
- http://www.vupen.com/english/advisories/2009/2229
- http://downloads.digium.com/pub/security/AST-2009-005.html