CVE-2019-20633

Name	CVE-2019-20633
Description	GNU patch through 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk in pch.c that can cause a denial of service via a crafted patch file. NOTE: this issue exists because of an incomplete fix for CVE-2018-6952.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
patch (PTS)	bookworm, bullseye	2.7.6-7	fixed
	forky, sid, trixie	2.8-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
patch	source	(unstable)	(not affected)

- patch <not-affected> (Incomplete fix for CVE-2018-6952 not applied)
https://savannah.gnu.org/bugs/index.php?56683