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.
History

Sun, 22 Dec 2024 22:30:00 +0000

Type Values Removed Values Added
Description 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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2024-12-22T00:00:00

Updated: 2024-12-22T22:25:03.618780

Reserved: 2024-12-22T00:00:00

Link: CVE-2024-56375

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2024-12-22T23:15:06.613

Modified: 2024-12-22T23:15:06.613

Link: CVE-2024-56375

cve-icon Redhat

No data.