CVE-2016-2232

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-02-22 · updated 2026-06-17

Description

Asterisk Open Source 1.8.x, 11.x before 11.21.1, 12.x, and 13.x before 13.7.1 and Certified Asterisk 1.8.28, 11.6 before 11.6-cert12, and 13.1 before 13.1-cert3 allow remote authenticated users to cause a denial of service (uninitialized pointer dereference and crash) via a zero length error correcting redundancy packet for a UDPTL FAX packet that is lost.

Affected products

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 (+243)
Digium Certified Asterisk: 1.8.28, 11.6-cert1, 11.6-cert1_rc2, 11.6-cert10, 11.6-cert11, 11.6-cert2 (+16)

References

http://downloads.asterisk.org/pub/security/AST-2016-003.html
http://www.debian.org/security/2016/dsa-3700
http://www.securitytracker.com/id/1034931
http://downloads.asterisk.org/pub/security/AST-2016-003.html
http://www.debian.org/security/2016/dsa-3700
http://www.securitytracker.com/id/1034931

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