A flaw was found in the way HAProxy processed HTTP responses containing the "Set-Cookie2" header. This flaw could allow an attacker to send crafted HTTP response packets which lead to an infinite loop, eventually resulting in a denial of service condition. The highest threat from this vulnerability is availability.
総合評価: CVE-2022-0711 は中リスク（59.5/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 66.48%、98 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 | 2025-11-21 | 72.39% | 66.48% | -5.90% |
| 2 | 2025-11-18 | 66.48% | 72.39% | +5.90% |
| 3 | 2025-08-26 | — | 66.48% | — |
EPSS の全履歴 （全 24 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 |
|---|---|---|---|
alpine
|
high | CVE-2022-0711: 1 source package rows (haproxy); 4 state rows across 1 repos (3.12-main); fixed 4, open 0. | https://security.alpinelinux.org/vuln/CVE-2022-0711 |
debian
|
not yet assigned | CVE-2022-0711 not yet assigned priority: Debian including 1 source packages (haproxy), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-0711 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2022-0711 |
suse
|
medium | CVE-2022-0711 severity moderate: SUSE including 7 source package names (haproxy, haproxy-2.4.22+git0.f8e3218e2-150400.3.16.1, …), 24 product×package rows across 24 product lines (HPE Helion OpenStack 8, SUSE Linux Enterprise High Availability Extension 12 SP3, … (24 product lines)): Known Not Affected 15, Fixed 9. | https://www.suse.com/security/cve/CVE-2022-0711/ |
ubuntu
|
medium | CVE-2022-0711 medium priority: Ubuntu including 1 source packages (haproxy), 7 status rows across 7 suites (bionic, focal, impish, jammy, trusty, upstream, xenial): not-affected 3, released 2, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2022-0711 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| haproxy | haproxy | >= 2.2.0, < 2.2.21 | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
| haproxy | haproxy | >= 2.3.0, < 2.3.18 | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
| haproxy | haproxy | >= 2.4.0, < 2.4.13 | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 4.0 | cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* |
| redhat | software_collections | — | cpe:2.3:a:redhat:software_collections:-:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 7.0 | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://access.redhat.com/security/cve/cve-2022-0711 | Third Party Advisory |
| https://github.com/haproxy/haproxy/commit/bfb15ab34ead85f64cd6da0e9fb418c9cd14cee8 | Patch Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5102 | Third Party Advisory |
| https://www.mail-archive.com/haproxy%40formilux.org/msg41833.html |