CVE-2015-6806

Name	CVE-2015-6806
Description	The MScrollV function in ansi.c in GNU screen 4.3.1 and earlier does not properly limit recursion, which allows remote attackers to cause a denial of service (stack consumption) via an escape sequence with a large repeat count value.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-305-1, DSA-3352-1
Debian Bugs	797624

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
screen (PTS)	bullseye	4.8.0-6	fixed
	bookworm	4.9.0-4	fixed
	forky, sid, trixie	4.9.1-3	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
screen	source	squeeze	4.0.3-14+deb6u1	DLA-305-1
screen	source	wheezy	4.1.0~20120320gitdb59704-7+deb7u1	DSA-3352-1
screen	source	jessie	4.2.1-3+deb8u1	DSA-3352-1
screen	source	(unstable)	4.3.1-2		797624

https://savannah.gnu.org/bugs/?45713
https://www.openwall.com/lists/oss-security/2015/09/01/1