CVE-2021-32558

Name	CVE-2021-32558
Description	An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-2729-1, DSA-4999-1
Debian Bugs	991710

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
asterisk (PTS)	buster	1:16.2.1~dfsg-1+deb10u2	vulnerable
	buster (security)	1:16.28.0~dfsg-0+deb10u3	fixed
	bullseye (security), bullseye	1:16.28.0~dfsg-0+deb11u2	fixed
	sid	1:20.2.1~dfsg+~cs6.13.40431413-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
asterisk	source	stretch	1:13.14.1~dfsg-2+deb9u5	DLA-2729-1
asterisk	source	bullseye	1:16.16.1~dfsg-1+deb11u1	DSA-4999-1
asterisk	source	(unstable)	1:16.16.1~dfsg-2		991710

https://downloads.asterisk.org/pub/security/AST-2021-008.html