CVE-2020-27790

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
VendorProductVersion
upxupx
𝑥
< 3.96
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
upx-ucl
bullseye
3.96-2
fixed
sid
4.2.4-1
fixed
trixie
4.2.4-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
upx-ucl
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
ignored
Common Weakness Enumeration
References
https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26
https://github.com/upx/upx/issues/331
https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26
https://github.com/upx/upx/issues/331