CVE-2020-27788

NameCVE-2020-27788
DescriptionAn out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() 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.
SourceCVE (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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
upx-ucl (PTS)buster3.95-1vulnerable
bullseye3.96-2fixed
bookworm, sid3.96-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
upx-uclsource(unstable)3.96-1unimportant

Notes

https://github.com/upx/upx/issues/332
https://github.com/upx/upx/commit/1bb93d4fce9f1d764ba57bf5ac154af515b3fc83 (v3.96)

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