What’s Vulnerable › Vulnerabilities

CVE-2013-2686

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-04-01 · updated 2026-06-16
• Weakness: CWE-119

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.

Affected products

• asterisk Certified Asterisk: 1.8.15-cert1, 1.8.15.0, 1.8.15.0-rc1
• asterisk Digiumphones: 10.0.0, 10.0.0-beta1, 10.0.0-beta2, 10.0.0-rc1, 10.0.0-rc2, 10.0.0-rc3 (+38)
• asterisk Open Source: 1.8.0, 1.8.0-beta1, 1.8.0-beta2, 1.8.0-beta3, 1.8.0-beta4, 1.8.0-beta5 (+176)

References

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

Get alerted when CVE-2013-2686 or the next vulnerability affects your stack