GHSA-5v8v-66v8-mwm7 · 深刻度： medium · エコシステム： rust — Integer overflow in the bundled Brotli C library
A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.
総合評価: CVE-2020-8927 は中リスク（54.5/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 3.24%、87 パーセンタイル） 根拠: 直近 1 日で EPSS が +2.93% 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: 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 | 0.31% | 3.24% | +2.93% |
| 2 | 2025-11-21 | 1.34% | 0.31% | -1.03% |
| 3 | 2025-11-18 | — | 1.34% | — |
EPSS の全履歴 （全 26 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 |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
3.9 | 2.5 | [email protected] |
| 6.4 | 2.0 | MEDIUM |
|
10.0 | 4.9 | [email protected] |
GHSA-5v8v-66v8-mwm7 · 深刻度： medium · エコシステム： rust — Integer overflow in the bundled Brotli C library
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2020-8927: 1 source package rows (brotli); 8 state rows across 8 repos (3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 8, open 0. | https://security.alpinelinux.org/vuln/CVE-2020-8927 |
debian
|
not yet assigned | CVE-2020-8927 not yet assigned priority: Debian including 1 source packages (brotli), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-8927 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2020-8927 |
suse
|
medium | CVE-2020-8927 severity moderate: SUSE including 566 source package names (0.0.17-1.1:libbrotlicommon1-1.0.7-3.3.1, 0.0.17-1.1:libbrotlidec1-1.0.7-3.3.1, …), 1484 product×package rows across 462 product lines (Container bci/bci-init, Container bci/dotnet-aspnet, … (462 product lines)): Fixed 1172, Known Affected 231, Will Not Fix 43, Known Not Affected 38. | https://www.suse.com/security/cve/CVE-2020-8927/ |
ubuntu
|
medium | CVE-2020-8927 medium priority: Ubuntu including 1 source packages (brotli), 5 status rows across 5 suites (bionic, focal, trusty, upstream, xenial): released 4, DNE 1. | https://ubuntu.com/security/CVE-2020-8927 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| brotli | < 1.0.8 | cpe:2.3:a:google:brotli:*:*:*:*:*:*:*:* | |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 31 | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| fedoraproject | fedora | 36 | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 20.04 | cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
| opensuse | leap | 15.2 | cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* |
| microsoft | .net | >= 5.0, <= 5.0.14 | cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* |
| microsoft | .net_core | >= 3.1, <= 3.1.22 | cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:* |
| microsoft | powershell | >= 7.0, < 7.0.9 | cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:* |
| microsoft | powershell | >= 7.1, < 7.1.6 | cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:* |
| microsoft | powershell | >= 7.2, < 7.2.2 | cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:* |
| microsoft | visual_studio_2019 | >= 16.0, <= 16.11 | cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* |
| microsoft | visual_studio_2022 | >= 17.0, <= 17.0.7 | cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* |
| microsoft | visual_studio_2022 | 17.1 | cpe:2.3:a:microsoft:visual_studio_2022:17.1:*:*:*:*:*:*:* |