An issue was discovered in adns before 1.5.2. It fails to ignore apparent answers before the first RR that was found the first time. when this is fixed, the second answer scan finds the same RRs at the first. Otherwise, adns can be confused by interleaving answers for the CNAME target, with the CNAME itself. In that case the answer data structure (on the heap) can be overrun. With this fixed, it prefers to look only at the answer RRs which come after the CNAME, which is at least arguably correct.
総合評価: CVE-2017-9109 は高リスク（65.9/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 0.89%、76 パーセンタイル） 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 | 2026-04-22 | 0.67% | 0.89% | +0.22% |
| 2 | 2025-11-21 | 0.89% | 0.67% | -0.22% |
| 3 | 2025-11-18 | — | 0.89% | — |
EPSS の全履歴 （全 11 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2017-9109 unimportant priority: Debian including 1 source packages (adns), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2017-9109 |
suse
|
high | CVE-2017-9109 severity important: SUSE including 18 source package names (24.164:libadns1-1.4-103.3.1, 26.196:libadns1-1.4-103.3.1, …), 60 product×package rows across 52 product lines (Container caasp/v4/nginx-ingress-controller, Container suse/ltss/sle12.5/sles12sp5, … (52 product lines)): Fixed 60. | https://www.suse.com/security/cve/CVE-2017-9109/ |
ubuntu
|
medium | CVE-2017-9109 medium priority: Ubuntu including 1 source packages (adns), 17 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 11, needed 3, DNE 1, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2017-9109 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| gnu | adns | < 1.5.2 | cpe:2.3:a:gnu:adns:*:*:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| fedoraproject | fedora | 31 | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |