CVE-2013-5642

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.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 5.08% Top 15%
Vendor Advisory debian.org Vendor Advisory mandriva.com Vendor Advisory asterisk.org Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://secunia.com/advisories/54534 third party advisory vendor advisory
http://osvdb.org/96690 vdb entry
http://downloads.asterisk.org/pub/security/AST-2013-005.html patch vendor advisory
http://secunia.com/advisories/54617 third party advisory
http://www.debian.org/security/2013/dsa-2749 vendor advisory
https://issues.asterisk.org/jira/browse/ASTERISK-22007
http://www.securitytracker.com/id/1028957 vdb entry
http://www.securityfocus.com/bid/62022 vdb entry
http://archives.neohapsis.com/archives/bugtraq/2013-08/0174.html mailing list
http://www.mandriva.com/security/advisories?name=MDVSA-2013:223 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-5642?
CVE-2013-5642 has been scored as a medium severity vulnerability.
How to fix CVE-2013-5642?
To fix CVE-2013-5642, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-5642 being actively exploited in the wild?
It is possible that CVE-2013-5642 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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