CVE-2021-27548

Name	CVE-2021-27548
Description	There is a Null Pointer Dereference vulnerability in the XFAScanner::scanNode() function in XFAScanner.cc in xpdf 4.03.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	1011333

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
texlive-bin (PTS)	buster	2018.20181218.49446-1	fixed
	buster (security)	2018.20181218.49446-1+deb10u1	fixed
	bullseye	2020.20200327.54578-7	fixed
	bullseye (security)	2020.20200327.54578-7+deb11u1	fixed
	bookworm, sid	2022.20220321.62855-5.1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Debian Bugs
texlive-bin	source	experimental	2022.20220321.62855-2
texlive-bin	source	stretch	(not affected)
texlive-bin	source	buster	(not affected)
texlive-bin	source	bullseye	(not affected)
texlive-bin	source	(unstable)	2022.20220321.62855-3	unimportant	1011333

Notes

[bullseye] - texlive-bin <not-affected> (Vulnerable code introduced later)
[buster] - texlive-bin <not-affected> (Vulnerable code introduced later)
[stretch] - texlive-bin <not-affected> (Vulnerable code introduced later)
https://forum.xpdfreader.com/viewtopic.php?f=3&t=42115
embeds http://www.xpdfreader.com/download.html
PoC crashes pdftosrc binary.
Crash in CLI tool, no security impact