CVE-2021-24031

EUVD-2021-10951
In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
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
Base Score
CVSS 3.x
EPSS Score
Percentile: 22%
Affected Products (NVD)
VendorProductVersion
facebookzstandard
𝑥
< 1.4.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libzstd
bookworm
1.5.4+dfsg2-5
fixed
bullseye
1.4.8+dfsg-2.1
fixed
sid
1.5.6+dfsg-1
fixed
trixie
1.5.6+dfsg-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libzstd
bionic
Fixed 1.3.3+dfsg-2ubuntu1.2
released
focal
Fixed 1.4.4+dfsg-3ubuntu0.1
released
groovy
Fixed 1.4.5+dfsg-4ubuntu0.1
released
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
Fixed 1.3.1+dfsg-1~ubuntu0.16.04.1+esm3
released
Common Weakness Enumeration
References
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404
https://github.com/facebook/zstd/issues/1630
https://www.facebook.com/security/advisories/cve-2021-24031
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404
https://github.com/facebook/zstd/issues/1630
https://www.facebook.com/security/advisories/cve-2021-24031