CVE-2012-2947

Severity: low (CVSS 2.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-06-02 · updated 2026-06-16
Weakness: CWE-284

Description

chan_iax2.c in the IAX2 channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1, when a certain mohinterpret setting is enabled, allows remote attackers to cause a denial of service (daemon crash) by placing a call on hold.

Affected products

Debian Linux: 6.0
Digium Asterisk: 1.8.0, 1.8.0-beta1, 1.8.0-beta2, 1.8.0-beta3, 1.8.0-beta4, 1.8.0-beta5 (+96)
Digium Certified Asterisk: 1.8.11-cert, 1.8.11-cert1

References

http://archives.neohapsis.com/archives/bugtraq/2012-05/0144.html
http://downloads.asterisk.org/pub/security/AST-2012-007.html
http://secunia.com/advisories/49303
http://www.debian.org/security/2012/dsa-2493
http://www.securitytracker.com/id?1027102
http://archives.neohapsis.com/archives/bugtraq/2012-05/0144.html
http://downloads.asterisk.org/pub/security/AST-2012-007.html
http://secunia.com/advisories/49303
http://www.debian.org/security/2012/dsa-2493
http://www.securitytracker.com/id?1027102

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