CVE-2007-2293: Asterisk

High severity, CVSS 7.6. EPSS: 23.9% chance of exploitation in the next 30 days.

Multiple stack-based buffer overflows in the process_sdp function in chan_sip.c of the SIP channel T.38 SDP parser in Asterisk before 1.4.3 allow remote attackers to execute arbitrary code via a long (1) T38FaxRateManagement or (2) T38FaxUdpEC SDP parameter in an SIP message, as demonstrated using SIP INVITE.

Affected products

• Asterisk Asterisk: version 1.4.1 only; version 1.4.2 only; version 1.4_beta only

Published 2007-04-26. Last modified 2026-06-16.