CVE-2021-20285

NameCVE-2021-20285
DescriptionA flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
upx-ucl (PTS)stretch3.91-4vulnerable
buster3.95-1vulnerable
bullseye, sid3.96-2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
upx-uclsource(unstable)(unfixed)unimportant

Notes

https://github.com/upx/upx/issues/421
https://github.com/upx/upx/commit/3781df9da23840e596d5e9e8493f22666802fe6c

Search for package or bug name: Reporting problems