GHSA-2cj7-mg3x-9mhq · 深刻度： high — Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH...
Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
総合評価: CVE-2023-5678 は中リスク（56.8/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 4.46%、90 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 直近 1 日で EPSS が +4.02% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
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 | 0.44% | 4.46% | +4.02% |
| 2 | 2026-06-13 | 0.54% | 0.44% | -0.10% |
| 3 | 2026-05-12 | — | 0.54% | — |
EPSS の全履歴 （全 26 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 |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-2cj7-mg3x-9mhq · 深刻度： high — Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH...
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-5678: 1 source package rows (openssl); 164 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 33, open 131. | https://security.alpinelinux.org/vuln/CVE-2023-5678 |
debian
|
not yet assigned | CVE-2023-5678 not yet assigned priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-5678 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2023-5678 |
suse
|
medium | CVE-2023-5678 severity moderate: SUSE including 532 source package names (1.2.3-2.2.63:libopenssl1_1-1.1.1l-150400.7.60.2, 1.2.3-3.2.78:libopenssl1_1-1.1.1l-150400.7.60.2, …), 1303 product×package rows across 300 product lines (Container bci/bci-base-fips, Container bci/bci-init, … (300 product lines)): Fixed 1030, Known Affected 185, Known Not Affected 88. | https://www.suse.com/security/cve/CVE-2023-5678/ |
ubuntu
|
low | CVE-2023-5678 low priority: Ubuntu including 4 source packages (edk2, nodejs, openssl, openssl1.0), 48 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 13, released 13, DNE 10, ignored 5, needs-triage 4, needed 3. | https://ubuntu.com/security/CVE-2023-5678 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| openssl | openssl | >= 1.0.2, < 1.0.2zj | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| openssl | openssl | >= 1.1.1, < 1.1.1x | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| openssl | openssl | >= 3.0.0, < 3.0.13 | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| openssl | openssl | >= 3.1.0, < 3.1.5 | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |