CVE-2021-20271

A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7 HIGH
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 42%
VendorProductVersion
rpmrpm
4.15.0 ≤
𝑥
< 4.15.1.3
rpmrpm
4.16.0 ≤
𝑥
< 4.16.1.3
rpmrpm
4.15.0:alpha
rpmrpm
4.15.0:beta1
rpmrpm
4.15.0:rc1
rpmrpm
4.16.0:alpha
rpmrpm
4.16.0:beta2
rpmrpm
4.16.0:beta3
rpmrpm
4.16.0:rc1
redhatenterprise_linux
8.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
rpm
bullseye
4.16.1.2+dfsg1-3
fixed
buster
no-dsa
stretch
no-dsa
bookworm
4.18.0+dfsg-1+deb12u1
fixed
sid
4.20.0+dfsg-3
fixed
trixie
4.20.0+dfsg-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
rpm
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
ignored
hirsute
ignored
groovy
ignored
focal
Fixed 4.14.2.1+dfsg1-1ubuntu0.1~esm1
released
bionic
Fixed 4.14.1+dfsg1-2ubuntu0.1~esm1
released
xenial
Fixed 4.12.0.1+dfsg1-3ubuntu0.1~esm1
released
trusty
needed