CVE-2024-45237

EUVD-2024-41378
An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 55%
Affected Products (NVD)
VendorProductVersion
nicmxfort-validator
𝑥
< 1.6.3
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
fort_validator_projectfort_validator
𝑥
< 1.6.3
ADP
Debian logo
Debian Releases
Debian Product
Codename
fort-validator
bookworm
1.5.4-1+deb12u1
fixed
bullseye
vulnerable
bullseye (security)
1.5.3-1~deb11u2
fixed
forky
1.6.7-1
fixed
sid
1.6.7-1
fixed
trixie
1.6.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
fort-validator
focal
Fixed 1.2.0-1ubuntu0.1~esm1
released
jammy
Fixed 1.5.3-1ubuntu0.1
released
noble
Fixed 1.6.1-1ubuntu0.1~esm2
released
oracular
ignored
plucky
not-affected
questing
not-affected
Common Weakness Enumeration
References
https://nicmx.github.io/FORT-validator/CVE.html
https://lists.debian.org/debian-lts-announce/2025/02/msg00030.html