mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. In affected versions missing input validation on mod_auth_openidc_session_chunks cookie value makes the server vulnerable to a denial of service (DoS) attack. An internal security audit has been conducted and the reviewers found that if they manipulated the value of the mod_auth_openidc_session_chunks cookie to a very large integer, like 99999999, the server struggles with the request for a long time and finally gets back with a 500 error. Making a few requests of this kind caused our server to become unresponsive. Attackers can craft requests that would make the server work very hard (and possibly become unresponsive) and/or crash with minimal effort. This issue has been addressed in version 2.4.15.2. Users are advised to upgrade. There are no known workarounds for this vulnerability.
総合評価: CVE-2024-24814 は悪用リスクが高い（68.9/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 1.25%、65 パーセンタイル） 根拠: 公開エクスプロイトが 1 件参照されています（Exploit-DB）。 直近 1 日で EPSS が +1.05% 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: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 0.21% | 1.25% | +1.05% |
| 2 | 2025-12-30 | 0.29% | 0.21% | -0.09% |
| 3 | 2025-12-28 | — | 0.29% | — |
EPSS の全履歴 （全 13 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 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2024-24814 not yet assigned priority: Debian including 1 source packages (libapache2-mod-auth-openidc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2024-24814 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2024-24814 |
suse
|
high | CVE-2024-24814 severity important: SUSE including 10 source package names (apache2-mod_auth_openidc-2.3.8-150100.3.28.1, apache2-mod_auth_openidc-2.3.8-150600.16.5.1, …), 28 product×package rows across 26 product lines (SUSE Enterprise Storage 7.1, SUSE Liberty Linux 8, … (26 product lines)): Fixed 28. | https://www.suse.com/security/cve/CVE-2024-24814/ |
ubuntu
|
medium | CVE-2024-24814 medium priority: Ubuntu including 1 source packages (libapache2-mod-auth-openidc), 11 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needed 4, not-affected 4, DNE 1, ignored 1, released 1. | https://ubuntu.com/security/CVE-2024-24814 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| openidc | mod_auth_openidc | >= 2.0.0, <= 2.4.15.1 | cpe:2.3:a:openidc:mod_auth_openidc:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 39 | cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/OpenIDC/mod_auth_openidc/commit/4022c12f314bd89d127d1be008b1a80a08e1203d | Patch |
| https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-hxr6-w4gc-7vvv | Exploit Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2024/03/msg00004.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/[email protected]/message/T7DKVEVREYAI4F46CQAVOTPL75WLOZOE/ | Mailing List Third Party Advisory |