NULL pointer dereference in Asterisk Open Source - CVE-2012-3553
Published: June 19, 2012 / Updated: July 28, 2020
Vulnerability identifier: #VU32789
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-3553
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the Skinny (aka SCCP) channel driver in Asterisk Open Source 10.x before 10.5.1 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by sending a Station Key Pad Button message and closing a connection in off-hook mode, a related issue to CVE-2012-2948. Per: http://cwe.mitre.org/data/definitions/476. A remote attacker can perform a denial of service (DoS) attack.
Affected software
Asterisk Open Source
asterisk (Alpine package)
asterisk (Alpine package)
How to mitigate CVE-2012-3553
Update to version 10.5.1.
Asterisk Open Source - update to 10.5.1
asterisk (Alpine package) - update to 10.5.1-r0
asterisk (Alpine package) - update to 10.5.1-r0