CVE-2021-44493

Name	CVE-2021-44493
Description	An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, an attacker can cause a call to $Extract to force an signed integer holding the size of a buffer to take on a large negative number, which is then used as the length of a memcpy call that occurs on the stack, causing a buffer overflow.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1009900

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
fis-gtm (PTS)	jessie	6.2-000-1	vulnerable
	stretch	6.3-000A-1	vulnerable
	buster	6.3-007-1	vulnerable
	bullseye	6.3-014-3	vulnerable
	bookworm	7.0-005-1	fixed
	sid, trixie	7.0-005-2.1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
fis-gtm	source	jessie	(unfixed)	end-of-life
fis-gtm	source	(unstable)	7.0-002-1			1009900

Notes

[bullseye] - fis-gtm <ignored> (Minor issue)
[buster] - fis-gtm <ignored> (Minor issue)
[stretch] - fis-gtm <ignored> (Minor issue)
http://tinco.pair.com/bhaskar/gtm/doc/articles/GTM_V7.0-002_Release_Notes.html
https://gitlab.com/YottaDB/DB/YDB/-/issues/828