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Fencer Intel
high 7.5

CVE-2024-45238 json

An issue was discovered in Fort before 1.6.3.

published 2y ago modified 4mo ago also EUVD-2024-41379

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

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 bit string that doesn't properly decode into a Subject Public Key. OpenSSL does not report this problem during parsing, and when compiled with OpenSSL libcrypto versions below 3, Fort recklessly dereferences the pointer. Because Fort is an RPKI Relying Party, a crash can lead to Route Origin Validation unavailability, which can lead to compromised routing.

Patch / fix

  • fort_validator_project fort_validator 1.6.3
  • fort-validator Debian 12 1.5.4-1+deb12u1
  • fort-validator Debian 14, Debian 13 1.6.3-1

debian advisories DEBIAN-CVE-2024-45238

  • fort-validator Ubuntu 22.04 LTS 1.5.3-1ubuntu0.1
  • fort-validator Ubuntu Pro 20.04 LTS 1.2.0-1ubuntu0.1~esm1
  • fort-validator Ubuntu Pro 24.04 LTS 1.6.1-1ubuntu0.1~esm2

ubuntu advisories UBUNTU-CVE-2024-45238

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2y ago

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • fort_validator_project fort_validator

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.