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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2009-08-12T10:00:00
Updated: 2024-08-07T05:59:57.107Z
Reserved: 2009-08-10T00:00:00
Link: CVE-2009-2726
Vulnrichment
No data.
NVD
Status : Modified
Published: 2009-08-12T10:30:01.110
Modified: 2024-11-21T01:05:36.590
Link: CVE-2009-2726
Redhat
No data.