GHSA-x3mh-jvjw-3xwx · 深刻度： high · エコシステム： rust — openssl-src's infinite loop in `BN_mod_sqrt()` reachable when parsing certificates
The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli. Internally this function is used when parsing certificates that contain elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. It is possible to trigger the infinite loop by crafting a certificate that has invalid explicit curve parameters. Since certificate parsing happens prior to verification of the certificate signature, any process that parses an externally supplied certificate may thus be subject to a denial of service attack. The infinite loop can also be reached when parsing crafted private keys as they can contain explicit elliptic curve parameters. Thus vulnerable situations include: - TLS clients consuming server certificates - TLS servers consuming client certificates - Hosting providers taking certificates or private keys from customers - Certificate authorities parsing certification requests from subscribers - Anything else which parses ASN.1 elliptic curve parameters Also any other applications that use the BN_mod_sqrt() where the attacker can control the parameter values are vulnerable to this DoS issue. In the OpenSSL 1.0.2 version the public key is not parsed during initial parsing of the certificate which makes it slightly harder to trigger the infinite loop. However any operation which requires the public key from the certificate will trigger the infinite loop. In particular the attacker can use a self-signed certificate to trigger the loop during verification of the certificate signature. This issue affects OpenSSL versions 1.0.2, 1.1.1 and 3.0. It was addressed in the releases of 1.1.1n and 3.0.2 on the 15th March 2022. Fixed in OpenSSL 3.0.2 (Affected 3.0.0,3.0.1). Fixed in OpenSSL 1.1.1n (Affected 1.1.1-1.1.1m). Fixed in OpenSSL 1.0.2zd (Affected 1.0.2-1.0.2zc).
総合評価: CVE-2022-0778 は高リスク（69.8/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 70.56%、99 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 +63.02% 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 | 7.54% | 70.56% | +63.02% |
| 2 | 2026-06-04 | 6.86% | 7.54% | +0.68% |
| 3 | 2026-05-22 | — | 6.86% | — |
EPSS の全履歴 （全 124 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 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-x3mh-jvjw-3xwx · 深刻度： high · エコシステム： rust — openssl-src's infinite loop in `BN_mod_sqrt()` reachable when parsing certificates
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2022-0778: 7 source package rows (libressl, libretls, …); 91 state rows across 15 repos (3.12-main, 3.17-community, 3.17-main, 3.18-community, 3.18-main, 3.19-community, 3.19-main, 3.20-community, 3.20-main, 3.21-community, 3.21-main, 3.22-community, 3.22-main, edge-community, edge-main); fixed 42, open 49. | https://security.alpinelinux.org/vuln/CVE-2022-0778 |
debian
|
not yet assigned | CVE-2022-0778 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-2022-0778 |
gentoo
|
low | CVE-2022-0778: 2 GLSA(s) (202210-02, 202405-29), 2 atom(s) (dev-libs/openssl, net-libs/nodejs); latest impact low. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-0778 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2022-0778 |
suse
|
high | CVE-2022-0778 severity important: SUSE including 444 source package names (1.1.1.0.1.5.568:libopenssl1_1-1.1.0i-14.27.1, 1.1.1.0.1.5.568:openssl-1_1-1.1.0i-14.27.1, …), 979 product×package rows across 133 product lines (Container caasp/v4/cilium, Container caasp/v4/cilium-operator, … (133 product lines)): Fixed 727, Known Affected 181, Known Not Affected 71. | https://www.suse.com/security/cve/CVE-2022-0778/ |
ubuntu
|
high | CVE-2022-0778 high priority: Ubuntu including 4 source packages (edk2, nodejs, openssl, openssl1.0), 56 status rows across 14 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 20, released 17, DNE 13, needs-triage 3, needed 2, ignored 1. | https://ubuntu.com/security/CVE-2022-0778 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| openssl | openssl | >= 1.0.2, < 1.0.2zd | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| openssl | openssl | >= 1.1.0, < 1.1.1n | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| openssl | openssl | >= 3.0.0, < 3.0.2 | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| netapp | cloud_volumes_ontap_mediator | — | cpe:2.3:a:netapp:cloud_volumes_ontap_mediator:-:*:*:*:*:*:*:* |
| netapp | clustered_data_ontap | — | cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* |
| netapp | clustered_data_ontap_antivirus_connector | — | cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector:-:*:*:*:*:*:*:* |
| netapp | santricity_smi-s_provider | — | cpe:2.3:a:netapp:santricity_smi-s_provider:-:*:*:*:*:*:*:* |
| netapp | storagegrid | — | cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:* |
| netapp | a250_firmware | — | cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:* |
| netapp | 500f_firmware | — | cpe:2.3:o:netapp:500f_firmware:-:*:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| fedoraproject | fedora | 36 | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |
| tenable | nessus | < 8.15.4 | cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:* |
| tenable | nessus | >= 10.0.0, < 10.1.2 | cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:* |
| mariadb | mariadb | >= 10.2.0, < 10.2.42 | cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* |
| mariadb | mariadb | >= 10.3.0, < 10.3.33 | cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* |
| mariadb | mariadb | >= 10.4.0, < 10.4.23 | cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* |
| mariadb | mariadb | >= 10.5.0, < 10.5.14 | cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* |
| mariadb | mariadb | >= 10.6.0, < 10.6.6 | cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* |
| mariadb | mariadb | >= 10.7.0, < 10.7.2 | cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* |
| nodejs | node.js | >= 12.0.0, <= 12.12.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 12.13.0, < 12.22.11 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | > 14.0.0, <= 14.14.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 14.15.0, < 14.19.1 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | > 16.0.0, <= 16.12.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 16.13.0, < 16.14.2 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | > 17.0.0, < 17.7.2 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |