Vulnerability in quiche (CVE-2023-6193)
Summary
Vulnerability in quiche (CVE-2023-6193). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 0.19.1 or later.
Original description
The description as published by the source.
Impact
quiche v. 0.15.0 through 0.19.0 was discovered to be vulnerable to unbounded queuing of path validation messages, which could lead to excessive resource consumption.
QUIC path validation (RFC 9000 Section 8.2) requires that the recipient of a PATH_CHALLENGE frame responds by sending a PATH_RESPONSE. An unauthenticated remote attacker can exploit the vulnerability by sending PATH_CHALLENGE frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that PATH_RESPONSE frames can only be sent at the slower rate than they are received, leading to storage of path validation data in an unbounded queue.
Patches
Quiche versions greater than 0.19.0 address this problem.
References
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2023-6193 has been found in quiche.
Risk of unauthorized operations or information disclosure.
What to do: upgrade quiche to 0.19.1 or later.
If unsure, ask your IT team or search "quiche CVE-2023-6193" on the vendor's site.
CVE-2023-6193 (quiche) — CWE-400
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 0.19.1 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-400) exists in quiche.
Check the vendor advisory for the affected versions of quiche.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 0.19.1.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'quiche' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'quiche' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
quicheを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade quiche to 0.19.1ステージング環境で 0.19.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web datatracker.ietf.org