An issue was discovered in Prosody before 0.11.9. Default settings are susceptible to remote unauthenticated denial-of-service (DoS) attacks via memory exhaustion when running under Lua 5.2 or Lua 5.3.
総合評価: CVE-2021-32918 は中リスク(55.6/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 2.11%、79 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 | 4.27% | 2.11% | -2.15% |
| 2 | 2026-05-30 | 2.87% | 4.27% | +1.40% |
| 3 | 2025-11-21 | — | 2.87% | — |
EPSS の全履歴 (全 23 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] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2021-32918: 1 source package rows (prosody); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. | https://security.alpinelinux.org/vuln/CVE-2021-32918 |
debian
|
not yet assigned | CVE-2021-32918 not yet assigned priority: Debian including 1 source packages (prosody), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-32918 |
gentoo
|
low | CVE-2021-32918: 1 GLSA(s) (202105-15), 1 atom(s) (net-im/prosody); latest impact low. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-32918 |
ubuntu
|
medium | CVE-2021-32918 medium priority: Ubuntu including 1 source packages (prosody), 16 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 6, ignored 4, needed 3, DNE 1, needs-triage 1, released 1. | https://ubuntu.com/security/CVE-2021-32918 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| prosody | prosody | < 0.11.9 | cpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/05/13/1 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2021/05/14/2 | Mailing List Mitigation Third Party Advisory |
| https://blog.prosody.im/prosody-0.11.9-released/ | Release Notes Vendor Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/ | |
| https://security.gentoo.org/glsa/202105-15 | Third Party Advisory |
| https://www.debian.org/security/2021/dsa-4916 | Third Party Advisory |