c-ares is an asynchronous resolver library. ares_inet_net_pton() is vulnerable to a buffer underflow for certain ipv6 addresses, in particular "0::00:00:00/2" was found to cause an issue. C-ares only uses this function internally for configuration purposes which would require an administrator to configure such an address via ares_set_sortlist(). However, users may externally use ares_inet_net_pton() for other purposes and thus be vulnerable to more severe issues. This issue has been fixed in 1.19.1.
総合評価: CVE-2023-31130 は低リスク(25.4/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.33%、25 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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。
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 | 0.01% | 0.33% | +0.32% |
| 2 | 2025-11-21 | 0.12% | 0.01% | -0.11% |
| 3 | 2025-11-18 | — | 0.12% | — |
EPSS の全履歴 (全 8 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 |
|---|---|---|---|---|---|---|
| 4.1 | 3.1 | MEDIUM |
|
0.5 | 3.6 | [email protected] |
| 6.4 | 3.1 | MEDIUM |
|
0.5 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-31130: 1 source package rows (c-ares); 5 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 5. | https://security.alpinelinux.org/vuln/CVE-2023-31130 |
debian
|
not yet assigned | CVE-2023-31130 not yet assigned priority: Debian including 1 source packages (c-ares), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-31130 |
gentoo
|
normal | CVE-2023-31130: 1 GLSA(s) (202310-09), 1 atom(s) (net-dns/c-ares); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-31130 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-31130 |
ubuntu
|
medium | CVE-2023-31130 medium priority: Ubuntu including 1 source packages (c-ares), 9 status rows across 9 suites (bionic, focal, jammy, kinetic, lunar, mantic, trusty, upstream, xenial): released 7, ignored 1, not-affected 1. | https://ubuntu.com/security/CVE-2023-31130 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| c-ares_project | c-ares | < 1.19.1 | cpe:2.3:a:c-ares_project:c-ares:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 37 | cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* |
| fedoraproject | fedora | 38 | cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 | Release Notes |
| https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html | Mailing List |
| https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/[email protected]/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/ | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202310-09 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20240605-0005/ | |
| https://www.debian.org/security/2023/dsa-5419 | Third Party Advisory |