CVE-2023-49286— Denial of Service in Helper Process management
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I. Basic Information for CVE-2023-49286
Vulnerability Information
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Vulnerability Title
Denial of Service in Helper Process management
Source: NVD (National Vulnerability Database)
Vulnerability Description
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
可达断言
Source: NVD (National Vulnerability Database)
Vulnerability Title
Squid 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。 Squid 6.5之前版本存在安全漏洞，该漏洞源于函数返回值错误检查不正确，容易受到拒绝服务攻击。
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 |
|---|---|---|---|---|
| squid-cache | squid | < 6.5 | - |
II. Public POCs for CVE-2023-49286
| # | POC Description | Source Link | Shenlong Link |
|---|
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- http://www.squid-cache.org/Versions/v6/SQUID-2023_8.patchx_refsource_MISC
- https://github.com/squid-cache/squid/security/advisories/GHSA-xggx-9329-3c27x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2023-49286
Same Patch Batch · squid-cache · 2023-12-04 · 3 CVEs total
| CVE-2023-49285 | 8.6 HIGH | Denial of Service in HTTP Message Processing in Squid |
| CVE-2023-49288 | 8.6 HIGH | Denial of Service in HTTP Collapsed Forwarding in Squid |
IV. Related Vulnerabilities
Same product: squid
- CVE-2026-33526
Squid vulnerable to Denial of Service in ICP Request handlin - CVE-2026-33515
Squid has issues in ICP message handling - CVE-2026-32748
Squid has Denial of Service in ICP Response handling - CVE-2025-62168
Squid vulnerable to information disclosure via authenticatio - CVE-2025-54574
Squid's URN Handling can lead to Buffer Overflow
Same vendor: squid-cache
- CVE-2026-33526
Squid vulnerable to Denial of Service in ICP Request handlin - CVE-2026-33515
Squid has issues in ICP message handling - CVE-2026-32748
Squid has Denial of Service in ICP Response handling - CVE-2025-62168
Squid vulnerable to information disclosure via authenticatio - CVE-2025-54574
Squid's URN Handling can lead to Buffer Overflow
Same weakness: CWE-617
- CVE-2026-8257
WebAssembly Binaryen BrOn wasm-ir-builder.cpp makeBrOn asser - CVE-2026-41584
ZEBRA: rk Identity Point Panic in Transaction Verification - CVE-2026-20450
MediaTek Chipsets 安全漏洞 - CVE-2026-41485
Kyverno Controller Denial of Service via forEach Mutation Pa - CVE-2026-34067
nimiq-transaction vulnerable to panic via `HistoryTreeProof`
V. Comments for CVE-2023-49286
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