CVE-2021-20269

A flaw was found in the permissions of a log file created by kexec-tools. This flaw allows a local unprivileged user to read this file and leak kernel internal information from a previous panic. The highest threat from this vulnerability is to confidentiality. This flaw affects kexec-tools shipped by Fedora versions prior to 2.0.21-8 and RHEL versions prior to 2.0.20-47.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
VendorProductVersion
kexec-tools_projectkexec-tools
𝑥
< 2.0.21-8
kexec-tools_projectkexec-tools
𝑥
< 2.0.20-47
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
kexec-tools
bullseye
1:2.0.20-2.1
fixed
bookworm
1:2.0.25-3
fixed
sid
1:2.0.29-1
fixed
trixie
1:2.0.29-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
kexec-tools
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1934261
https://bugzilla.redhat.com/show_bug.cgi?id=1934261