CVE-2009-2726 - asterisk: Remote Crash Vulnerability in SIP channel driver (AST-2009-005)

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HIGH

asterisk: Remote Crash Vulnerability in SIP channel driver (AST-2009-005)

Published Aug 12, 2009

7.8

HIGH

CVSS 2.0

EPSS 6.52%

Description

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.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-770

Allocation of Resources Without Limits

References (12)

http://downloads.digium.com/pub/security/AST-2009-005.html
x_refsource_CONFIRMProduct
http://labs.mudynamics.com/advisories/MU-200908-01.txt
x_refsource_MISCBroken Link
http://secunia.com/advisories/36227
third-party-advisoryx_refsource_SECUNIABroken LinkVendor Advisory
http://www.securityfocus.com/archive/1/505669/100/0/threaded
mailing-listx_refsource_BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/36015
vdb-entryx_refsource_BIDBroken LinkExploitThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id?1022705
vdb-entryx_refsource_SECTRACKBroken LinkThird Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2009/2229
vdb-entryx_refsource_VUPENBroken LinkVendor Advisory
https://access.redhat.com/security/cve/CVE-2009-2726
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=516990
Issue Tracking
https://euvd.enisa.europa.eu/vulnerability/EUVD-2009-2717
Advisory
https://nvd.nist.gov/vuln/detail/CVE-2009-2726
https://www.cve.org/CVERecord?id=CVE-2009-2726

Link	Providers	Tags
http://downloads.digium.com/pub/security/AST-2009-005.html		x_refsource_CONFIRMProduct
http://labs.mudynamics.com/advisories/MU-200908-01.txt		x_refsource_MISCBroken Link
http://secunia.com/advisories/36227		third-party-advisoryx_refsource_SECUNIABroken LinkVendor Advisory
http://www.securityfocus.com/archive/1/505669/100/0/threaded		mailing-listx_refsource_BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/36015		vdb-entryx_refsource_BIDBroken LinkExploitThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id?1022705		vdb-entryx_refsource_SECTRACKBroken LinkThird Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2009/2229		vdb-entryx_refsource_VUPENBroken LinkVendor Advisory
https://access.redhat.com/security/cve/CVE-2009-2726		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=516990		Issue Tracking
https://euvd.enisa.europa.eu/vulnerability/EUVD-2009-2717		Advisory
https://nvd.nist.gov/vuln/detail/CVE-2009-2726
https://www.cve.org/CVERecord?id=CVE-2009-2726