CVE-2024-32976— Envoy can enter an endless loop while decompressing Brotli data with extra input
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I. Basic Information for CVE-2024-32976
Vulnerability Information
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Vulnerability Title
Envoy can enter an endless loop while decompressing Brotli data with extra input
Source: NVD (National Vulnerability Database)
Vulnerability Description
Envoy is a cloud-native, open source edge and service proxy. Envoyproxy with a Brotli filter can get into an endless loop during decompression of Brotli data with extra input.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Envoy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Envoy是一款开源的分布式代理服务器。 Envoy存在安全漏洞，该漏洞源于在对Brotli数据进行额外输入解压缩时可能会陷入无限循环。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| envoyproxy | envoy | >= 1.30.0, <= 11.30.1 | - |
II. Public POCs for CVE-2024-32976
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://github.com/envoyproxy/envoy/security/advisories/GHSA-7wp5-c2vq-4f8mx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2024-32976
Same Patch Batch · envoyproxy · 2024-06-04 · 7 CVEs total
| CVE-2024-34363 | 7.5 HIGH | Envoy can crash due to uncaught nlohmann JSON exception |
| CVE-2024-23326 | 5.9 MEDIUM | Envoy incorrectly accepts HTTP 200 response for entering upgrade mode |
| CVE-2024-32974 | 5.9 MEDIUM | Envoy affected by a crash in EnvoyQuicServerStream::OnInitialHeadersComplete() |
| CVE-2024-32975 | 5.9 MEDIUM | Envoy crashes in QuicheDataReader::PeekVarInt62Length() |
| CVE-2024-34362 | 5.9 MEDIUM | Envoy affected by a crash (use-after-free) in EnvoyQuicServerStream |
| CVE-2024-34364 | 5.7 MEDIUM | Envoy OOM vector from HTTP async client with unbounded response buffer for mirror response |
IV. Related Vulnerabilities
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Envoy Query Parameter header_mutation.cc params.add injectio - CVE-2026-26330
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Envoy HTTP: filter chain execution on reset streams causing - CVE-2026-26310
Crash for scoped ip address in Envoy during DNS - CVE-2026-26309
Envoy has an off-by-one write in JsonEscaper::escapeString()
Same vendor: envoyproxy
- CVE-2026-26330
Envoy global rate limit may crash when the response phase li - CVE-2026-26311
Envoy HTTP: filter chain execution on reset streams causing - CVE-2026-26310
Crash for scoped ip address in Envoy during DNS - CVE-2026-26309
Envoy has an off-by-one write in JsonEscaper::escapeString() - CVE-2026-26308
Envoy has an RBAC Header Validation Bypass via Multi-Value H
Same weakness: CWE-835
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Pillow: PDF Parsing Trailer Infinite Loop (DoS) - CVE-2026-41511
OpenMcdf has an Infinite loop DoS via crafted CFB directory - CVE-2026-5407
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi - CVE-2026-6536
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi - CVE-2026-6534
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi
V. Comments for CVE-2024-32976
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