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CVE-2013-2686

Published: Mar 29, 2013Updated: Apr 29, 2026 Sources: CVE List NVDCWE-119
NVD MITRE
5.0CVSSMEDIUM
EPSS Score
2.1%
Top 20.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

main/http.c in the HTTP server in Asterisk Open Source 1.8.x before 1.8.20.2, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.2-digiumphones does not properly restrict Content-Length values, which allows remote attackers to conduct stack-consumption attacks and cause a denial of service (daemon crash) via a crafted HTTP POST request. NOTE: this vulnerability exists because of an incorrect fix for CVE-2012-5976.

CVSS Vector Breakdown

AV:NAC:LAu:NC:NI:NA:P
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:PAvailability
Partial
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

n/an/a
open sourceasterisk
On-premWeb App
Communications / voip-telephony
certified asteriskasterisk
On-prem
Communications / voip-telephony
digiumphonesasterisk
On-prem
Communications / voip-telephony
asteriskoss-projectCommunicationsaka open source, asterisk appliance developer kit

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://issues.asterisk.org/jira/browse/ASTERISK-20967
issues.asterisk.org
http://telussecuritylabs.com/threats/show/TSL20130327-01
telussecuritylabs.com
http://downloads.asterisk.org/pub/security/AST-2013-002.html
downloads.asterisk.org

Timeline

Published
Mar 29, 2013
Last Updated
Apr 29, 2026

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