CVE-2021-31347

Name	CVE-2021-31347
Description	An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_parse_str() performs incorrect memory handling while parsing crafted XML files (writing outside a memory region created by mmap).
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2705-1
Debian Bugs	989360, 989361, 989363, 989364

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
mapcache (PTS)	jessie	1.2.1-2	vulnerable
	stretch	1.4.1-3	vulnerable
	buster	1.6.1-3	vulnerable
	bullseye	1.10.0-2	vulnerable
	bookworm	1.14.0-1	vulnerable
	sid, trixie	1.14.1-1	vulnerable
netcdf (PTS)	jessie	1:4.1.3-7.2	fixed
	stretch	1:4.4.1.1-2	fixed
	buster	1:4.6.2-1	vulnerable
	bullseye	1:4.7.4-1	vulnerable
	bookworm	1:4.9.0-3	fixed
	sid, trixie	1:4.9.2-7	fixed
netcdf-parallel (PTS)	buster	1:4.6.2-1	vulnerable
	bullseye	1:4.7.4-1	vulnerable
	bookworm	1:4.9.0-1	fixed
	trixie	1:4.9.0-4	fixed
	sid	1:4.9.0-5	fixed
scilab (PTS)	jessie	5.5.1-7	vulnerable
	stretch (security), stretch (lts), stretch	5.5.2-4+deb9u1	fixed
	buster	6.0.1-10+deb10u1	vulnerable
	bullseye	6.1.0+dfsg1-7	vulnerable
	bookworm	6.1.1+dfsg2-6	vulnerable
	sid, trixie	2024.1.0+dfsg-6	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
mapcache	source	jessie	(unfixed)	end-of-life
mapcache	source	(unstable)	(unfixed)	unimportant		989363
netcdf	source	jessie	(not affected)
netcdf	source	stretch	(not affected)
netcdf	source	(unstable)	1:4.9.0-1			989360
netcdf-parallel	source	(unstable)	1:4.9.0-1			989361
scilab	source	jessie	(unfixed)	end-of-life
scilab	source	stretch	5.5.2-4+deb9u1		DLA-2705-1
scilab	source	(unstable)	(unfixed)	unimportant		989364

Notes

[bullseye] - netcdf <ignored> (Minor issue)
[buster] - netcdf <ignored> (Minor issue)
[stretch] - netcdf <not-affected> (vulnerable code not present)
[bullseye] - netcdf-parallel <ignored> (Minor issue)
[buster] - netcdf-parallel <ignored> (Minor issue)
https://sourceforge.net/p/ezxml/bugs/27/
mapcache only uses ezxml to parse config files which are trusted
[jessie] - netcdf <not-affected> (vulnerable code introduced later)