This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero. If the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.
総合評価: CVE-2022-3924 は中リスク（63.3/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 15.99%、96 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。 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 | 2026-06-28 | 16.45% | 15.99% | -0.46% |
| 2 | 2026-06-24 | 17.27% | 16.45% | -0.82% |
| 3 | 2026-06-18 | — | 17.27% | — |
EPSS の全履歴 （全 22 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 |
|---|---|---|---|
alpine
|
— | CVE-2022-3924: 1 source package rows (bind); 54 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 7, open 47. | https://security.alpinelinux.org/vuln/CVE-2022-3924 |
debian
|
not yet assigned | CVE-2022-3924 not yet assigned priority: Debian including 1 source packages (bind9), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-3924 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-3924 |
suse
|
high | CVE-2022-3924 severity important: SUSE including 306 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 755 product×package rows across 120 product lines (Image SLES15-SP4, Image SLES15-SP4-Azure-Basic, … (120 product lines)): Known Not Affected 320, Fixed 294, Known Affected 141. | https://www.suse.com/security/cve/CVE-2022-3924/ |
ubuntu
|
medium | CVE-2022-3924 medium priority: Ubuntu including 2 source packages (bind9, isc-dhcp), 16 status rows across 8 suites (bionic, focal, jammy, kinetic, lunar, trusty, upstream, xenial): not-affected 11, released 4, needs-triage 1. | https://ubuntu.com/security/CVE-2022-3924 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| isc | bind | >= 9.16.12, < 9.16.37 | cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* |
| isc | bind | >= 9.18.0, < 9.18.11 | cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* |
| isc | bind | >= 9.19.0, < 9.19.9 | cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* |
| isc | bind | 9.16.12 | cpe:2.3:a:isc:bind:9.16.12:s1:*:*:supported_preview:*:*:* |
| isc | bind | 9.16.13 | cpe:2.3:a:isc:bind:9.16.13:s1:*:*:supported_preview:*:*:* |
| isc | bind | 9.16.14 | cpe:2.3:a:isc:bind:9.16.14:s1:*:*:supported_preview:*:*:* |
| isc | bind | 9.16.21 | cpe:2.3:a:isc:bind:9.16.21:s1:*:*:supported_preview:*:*:* |
| isc | bind | 9.16.32 | cpe:2.3:a:isc:bind:9.16.32:s1:*:*:supported_preview:*:*:* |
| isc | bind | 9.16.36 | cpe:2.3:a:isc:bind:9.16.36:s1:*:*:supported_preview:*:*:* |
| URL | タグ |
|---|---|
| https://kb.isc.org/docs/cve-2022-3924 | Vendor Advisory |