GHSA-wc42-fcjp-v8vq · 深刻度: medium · エコシステム: go — EVE Doesn't Protect Config Partition with Measured Boot
When sealing/unsealing the “vault” key, a list of PCRs is used, which defines which PCRs are used. In a previous project, CYMOTIVE found that the configuration is not protected by the secure boot, and in response Zededa implemented measurements on the config partition that was mapped to PCR 13. In that process, PCR 13 was added to the list of PCRs that seal/unseal the key. In commit “56e589749c6ff58ded862d39535d43253b249acf”, the config partition measurement moved from PCR 13 to PCR 14, but PCR 14 was not added to the list of PCRs that seal/unseal the key. This change makes the measurement of PCR 14 effectively redundant as it would not affect the sealing/unsealing of the key. An attacker could modify the config partition without triggering the measured boot, this could result in the attacker gaining full control over the device with full access to the contents of the encrypted “vault”
総合評価: CVE-2023-43634 は低リスク(37.3/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.16%、6 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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 | 2026-06-15 | 0.04% | 0.16% | +0.12% |
| 2 | 2025-03-30 | 0.07% | 0.04% | -0.04% |
| 3 | 2025-03-29 | — | 0.07% | — |
EPSS の全履歴 (全 4 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 |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.0 | 6.0 | [email protected] |
| 8.8 | 3.1 | HIGH |
|
2.0 | 6.0 | [email protected] |
GHSA-wc42-fcjp-v8vq · 深刻度: medium · エコシステム: go — EVE Doesn't Protect Config Partition with Measured Boot
| URL | タグ |
|---|---|
| https://asrg.io/security-advisories/cve-2023-43634/ | Third Party Advisory |