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
Link Resource
http://downloads.digium.com/pub/security/AST-2009-005.html Product
http://labs.mudynamics.com/advisories/MU-200908-01.txt Broken Link
http://secunia.com/advisories/36227 Broken Link Vendor Advisory
http://www.securityfocus.com/archive/1/505669/100/0/threaded Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/36015 Broken Link Exploit Third Party Advisory VDB Entry
http://www.securitytracker.com/id?1022705 Broken Link Third Party Advisory VDB Entry
http://www.vupen.com/english/advisories/2009/2229 Broken Link Vendor Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2009-08-12T10:00:00

Updated: 2018-10-10T18:57:01

Reserved: 2009-08-10T00:00:00


Link: CVE-2009-2726

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2009-08-12T10:30:01.110

Modified: 2024-02-15T21:05:21.457


Link: CVE-2009-2726

JSON object: View

cve-icon Redhat Information

No data.

CWE