CVE-2011-2216

Description

reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.2 does not initialize certain strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed Contact header.

5.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 3.50% Top 15%

Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory digium.com

Affected: n/a n/a

References

Link	Tags
http://www.securityfocus.com/archive/1/518236/100/0/threaded	mailing list
http://secunia.com/advisories/44828	third party advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062658.html	vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062013.html	vendor advisory
http://securitytracker.com/id?1025598	vdb entry
http://downloads.digium.com/pub/security/AST-2011-007.html	vendor advisory
http://osvdb.org/72752	vdb entry
http://www.securityfocus.com/bid/48096	vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/67812	vdb entry

Frequently Asked Questions

What is the severity of CVE-2011-2216?: CVE-2011-2216 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2216?: To fix CVE-2011-2216, 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-2011-2216 being actively exploited in the wild?: It is possible that CVE-2011-2216 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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