GHSA-cfgp-2977-2fmm · 深刻度： high · エコシステム： maven — Connection confusion in gRPC
When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005
総合評価: CVE-2023-32731 は中リスク（43.6/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.50%、39 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 | 0.11% | 0.50% | +0.39% |
| 2 | 2025-03-17 | 0.16% | 0.11% | -0.05% |
| 3 | 2024-05-09 | — | 0.16% | — |
EPSS の全履歴 （全 4 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 |
|---|---|---|---|---|---|---|
| 7.4 | 3.1 | HIGH |
|
2.2 | 5.2 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
GHSA-cfgp-2977-2fmm · 深刻度： high · エコシステム： maven — Connection confusion in gRPC
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2023-32731: 1 source package rows (grpc); 1 state rows across 1 repos (3.18-community); fixed 0, open 1. | https://security.alpinelinux.org/vuln/CVE-2023-32731 |
debian
|
unimportant | CVE-2023-32731 unimportant priority: Debian including 1 source packages (grpc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-32731 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-32731 |
suse
|
high | CVE-2023-32731 severity important: SUSE including 54 source package names (abseil-cpp-devel-20230802.1-150400.10.4.1, grpc, …), 286 product×package rows across 45 product lines (Image SLES15-SP4-BYOS-Azure, Image SLES15-SP4-HPC-BYOS-Azure, … (45 product lines)): Fixed 210, Known Not Affected 72, First Fixed 4. | https://www.suse.com/security/cve/CVE-2023-32731/ |
ubuntu
|
medium | CVE-2023-32731 medium priority: Ubuntu including 1 source packages (grpc), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 6, ignored 5, DNE 1, released 1. | https://ubuntu.com/security/CVE-2023-32731 |
| URL | タグ |
|---|---|
| https://github.com/grpc/grpc/pull/32309 | Patch |
| https://github.com/grpc/grpc/pull/33005 | Patch |