CVE-2024-56375

fort-validator: An integer underflow was discovered in Fort 1.6.3 and 1.6.4 before 1.6.5

CVE-2024-56375 is fixed in fort-validator on 1 platform, first by DEBIAN-CVE-2024-56375, released December 22, 2024. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0047
40th percentile

An integer underflow was discovered in Fort 1.6.3 and 1.6.4 before 1.6.5. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a Manifest RPKI object containing an empty fileList. Fort dereferences (and, shortly afterwards, writes to) this array during a shuffle attempt, before the validation that would normally reject it when empty. This out-of-bounds access is caused by an integer underflow that causes the surrounding loop to iterate infinitely. Because the product is permanently stuck attempting to overshuffle an array that doesn't actually exist, a crash is nearly guaranteed.

Where it's fixed

ProductFixed inFixReleased
Linux
fort-validator · Debian 13.5 (trixie) 1.6.5-1 DEBIAN-CVE-2024-56375 Dec 22, 2024
fort-validator · Debian 14 1.6.5-1 DEBIAN-CVE-2024-56375 Dec 22, 2024

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