An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss.
総合評価: CVE-2020-11653 は中リスク(58.6/100)。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 | 1.26% | 2.11% | +0.85% |
| 2 | 2025-11-29 | 0.53% | 1.26% | +0.73% |
| 3 | 2025-11-21 | — | 0.53% | — |
EPSS の全履歴 (全 17 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 |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-11653 not yet assigned priority: Debian including 1 source packages (varnish), 3 status rows across 3 suites (bookworm, bullseye, trixie): resolved 3. | https://security-tracker.debian.org/tracker/CVE-2020-11653 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-11653 |
ubuntu
|
low | CVE-2020-11653 low priority: Ubuntu including 1 source packages (varnish), 10 status rows across 10 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, trusty, upstream, xenial): not-affected 7, ignored 1, needs-triage 1, released 1. | https://ubuntu.com/security/CVE-2020-11653 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| varnish-cache | varnish_cache | >= 6.1.0, < 6.2.3 | cpe:2.3:a:varnish-cache:varnish_cache:*:*:*:*:-:*:*:* |
| varnish-cache | varnish_cache | >= 6.3.0, < 6.3.2 | cpe:2.3:a:varnish-cache:varnish_cache:*:*:*:*:-:*:*:* |
| varnish-software | varnish_cache | >= 6.0.0, < 6.0.6 | cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:lts:*:*:* |
| opensuse | backports_sle | 15.0 | cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00026.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00031.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/11/msg00036.html | Mailing List Third Party Advisory |
| https://varnish-cache.org/security/VSV00005.html#vsv00005 | Vendor Advisory |