CVE-2018-7284: Debian Linux

High severity, CVSS 7.5. EPSS: 66.2% chance of exploitation in the next 30 days.

A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the res_pjsip_pubsub module stores the accepted formats present in the Accept headers of the request. This code did not limit the number of headers it processed, despite having a fixed limit of 32. If more than 32 Accept headers were present, the code would write outside of its memory and cause a crash.

Affected products

• Debian Debian Linux: version 9.0 only
• Digium Asterisk: up to and including 13.19.1; from 14.0.0, up to and including 14.7.5; from 15.0.0, up to and including 15.2.1
• Digium Certified Asterisk: version 13.18 only; up to and including 13.18

Published 2018-02-22. Last modified 2026-06-17.