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
Configurations
Configuration 1 (hide)
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Information
Published : 2009-08-12 03:30
Updated : 2018-10-10 12:42
NVD link : CVE-2009-2726
Mitre link : CVE-2009-2726
JSON object : View
CWE
CWE-399
Resource Management Errors
Products Affected
asterisk
- business_edition
- appliance_s800i
- opensource
- open_source