CVE-2020-27790

Name	CVE-2020-27790
Description	A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service. The highest impact is to Availability.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, 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
upx-ucl (PTS)	jessie	3.91-1	vulnerable
	stretch	3.91-4	vulnerable
	buster	3.95-1	vulnerable
	bullseye	3.96-2	fixed
	sid, trixie	4.2.4-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
upx-ucl	source	(unstable)	3.96-1	unimportant

https://github.com/upx/upx/issues/331
https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26 (v3.96)