OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks (for authentication bypass) because the integer value of authenticated in mm_answer_authpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim co-location in which the attacker has user privileges. NOTE: this is disputed by the Supplier, who states "we do not consider it to be the application's responsibility to defend against platform architectural weaknesses."
総合評価: CVE-2023-51767 は中リスク(45/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.66%、47 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 | 2026-06-15 | 0.01% | 0.66% | +0.65% |
| 2 | 2025-11-21 | 0.08% | 0.01% | -0.07% |
| 3 | 2025-11-18 | — | 0.08% | — |
EPSS の全履歴 (全 14 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 |
|---|---|---|---|---|---|---|
| 7.0 | 3.1 | HIGH |
|
1.0 | 5.9 | [email protected] |
| 7.0 | 3.1 | HIGH |
|
1.0 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-51767: 1 source package rows (openssh); 78 state rows across 8 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 30, open 48. | https://security.alpinelinux.org/vuln/CVE-2023-51767 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-51767 |
suse
|
medium | CVE-2023-51767 severity moderate: SUSE including 6 source package names (openssh, openssh-clients, openssh-common, openssh-fips, openssh-helpers, openssh-server), 147 product×package rows across 37 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 7.1, … (37 product lines)): Will Not Fix 147. | https://www.suse.com/security/cve/CVE-2023-51767/ |
ubuntu
|
medium | CVE-2023-51767 medium priority: Ubuntu including 2 source packages (openssh, openssh-ssh1), 16 status rows across 8 suites (bionic, focal, jammy, lunar, mantic, trusty, upstream, xenial): not-affected 10, ignored 3, DNE 2, needs-triage 1. | https://ubuntu.com/security/CVE-2023-51767 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| openbsd | openssh | — | cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 39 | cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 9.0 | cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |