CVE-2014-8415

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-11-24 · updated 2026-06-17
Weakness: CWE-20

Description

Race condition in the chan_pjsip channel driver in Asterisk Open Source 12.x before 12.7.1 and 13.x before 13.0.1 allows remote attackers to cause a denial of service (assertion failure and crash) via a cancel request for a SIP session with a queued action to (1) answer a session or (2) send ringing.

Affected products

Digium Asterisk: from 12.0.0 before 12.7.1; from 13.0.0 before 13.0.1 — fixed in 12.7.1, 13.0.1

How to fix

Upgrade to a fixed version: Digium Asterisk 12.7.1, 13.0.1. Check the vendor advisory for mitigations.

References

http://downloads.asterisk.org/pub/security/AST-2014-015.html
http://downloads.asterisk.org/pub/security/AST-2014-015.html

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