CVE-2021-20266

A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.9 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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: 19%
VendorProductVersion
rpmrpm
𝑥
< 4.16.1.3
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
not-affected
trusty
not-affected
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1927741
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGXO3W6DHPO62GJ4VVF5DEUX5DRUR5K/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHRPNBCRPDJHHQE3MBPSZK4H7X2IM7AC/
https://security.gentoo.org/glsa/202107-43
https://bugzilla.redhat.com/show_bug.cgi?id=1927741
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGXO3W6DHPO62GJ4VVF5DEUX5DRUR5K/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHRPNBCRPDJHHQE3MBPSZK4H7X2IM7AC/
https://security.gentoo.org/glsa/202107-43