VOIP: Digium Asterisk SIP Invalid SDP Media Descriptions Denial of Service
This signature detects attempts to exploit a known vulnerability against Digium Asterisk. A successful attack can result in a denial-of-service condition.
Extended Description
The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.x before 1.8.23.1, 10.x before 10.12.3, and 11.x before 11.5.1; Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.3-digiumphones allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an invalid SDP that defines a media description before the connection description in a SIP request.
Affected Products
Digium asterisk
Short Name
VOIP:SIP:ASTERISK-SDP-MEDIA-DOS
Severity
Minor
Recommended
False
Recommended Action
Drop
Category
VOIP
Keywords
Asterisk CVE-2013-5642 Denial Descriptions Digium Invalid Media SDP SIP Service bid:62022 of
Release Date
10/24/2013
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3761
False Positive
Unknown
Vendors
Digium
CVSS Score
5.0