Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.
総合評価: CVE-2023-46724 は高リスク(69.3/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 4.01%、89 パーセンタイル) 根拠: 直近 1 日で EPSS が +3.64% 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: 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 | 2026-06-15 | 0.37% | 4.01% | +3.64% |
| 2 | 2025-12-28 | 0.60% | 0.37% | -0.23% |
| 3 | 2025-12-27 | — | 0.60% | — |
EPSS の全履歴 (全 31 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 |
|---|---|---|---|---|---|---|
| 8.6 | 3.1 | HIGH |
|
3.9 | 4.0 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-46724: 1 source package rows (squid); 62 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 5, open 57. | https://security.alpinelinux.org/vuln/CVE-2023-46724 |
debian
|
not yet assigned | CVE-2023-46724 not yet assigned priority: Debian including 1 source packages (squid), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-46724 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2023-46724 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2023-46724/ |
ubuntu
|
medium | CVE-2023-46724 medium priority: Ubuntu including 2 source packages (squid, squid3), 24 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 8, released 7, ignored 4, needs-triage 4, not-affected 1. | https://ubuntu.com/security/CVE-2023-46724 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| squid-cache | squid | >= 3.3.0.1, < 6.4 | cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* |