CVE-2020-23856

Name	CVE-2020-23856
Description	Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line) function at src/parser.c, which could cause a denial of service via the pointer variable caller->callee.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severity	low
Debian Bugs	988985

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
cflow (PTS)	stretch	1:1.4+dfsg1-3	vulnerable
	buster	1:1.6-1	vulnerable
	bullseye	1:1.6-4	vulnerable
	bookworm, sid	1:1.7-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
cflow	source	(unstable)	1:1.6-6	unimportant		988985

Notes

https://lists.gnu.org/archive/html/bug-cflow/2020-07/msg00000.html
https://git.savannah.gnu.org/cgit/cflow.git/commit/?id=b9a7cd5e9d4efb54141dd0d11c319bb97a4600c6
Crash in CLI tool, no security impact