Buffer overflow in Asterisk Open Source - CVE-2012-5977

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Main Vulnerability Database Vulnerabilities #VU32728

Buffer overflow in Asterisk Open Source - CVE-2012-5977

Published: January 4, 2013 / Updated: July 28, 2020


Vulnerability identifier: #VU32728
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-5977
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Digium (Linux Support Services)
Affected software:
Asterisk Open Source

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Asterisk Open Source 1.8.x before 1.8.19.1, 10.x before 10.11.1, and 11.x before 11.1.2; Certified Asterisk 1.8.11 before 1.8.11-cert10; and Asterisk Digiumphones 10.x-digiumphones before 10.11.1-digiumphones, when anonymous calls are enabled, allow remote attackers to cause a denial of service (resource consumption) by making anonymous calls from multiple sources and consequently adding many entries to the device state cache.


How to mitigate CVE-2012-5977

Install update from vendor's website.

Sources