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.
総合評価: CVE-2024-56375 は中リスク(51/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.39%、60 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-02-02 | 0.28% | 0.39% | +0.11% |
| 2 | 2026-01-30 | 0.23% | 0.28% | +0.06% |
| 3 | 2025-11-21 | — | 0.23% | — |
EPSS の全履歴 (全 7 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2024-56375 unimportant priority: Debian including 1 source packages (fort-validator), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2024-56375 |
ubuntu
|
medium | CVE-2024-56375 medium priority: Ubuntu including 1 source packages (fort-validator), 6 status rows across 6 suites (focal, jammy, noble, oracular, plucky, upstream): not-affected 4, ignored 1, released 1. | https://ubuntu.com/security/CVE-2024-56375 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| nicmx | fort_validator | 1.6.3 | cpe:2.3:a:nicmx:fort_validator:1.6.3:*:*:*:*:*:*:* |
| nicmx | fort_validator | 1.6.4 | cpe:2.3:a:nicmx:fort_validator:1.6.4:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/NICMx/FORT-validator/issues/154 | Issue Tracking Vendor Advisory |
| https://nicmx.github.io/FORT-validator/CVE.html | Vendor Advisory |