CVEvulnerability
CVE-2023-46728
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-11-06
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests.
Affected configurations
• squid-cache squid (< 6.0.1)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://github.com/squid-cache/squid/commit/6ea12e8fb590ac6959e9356a81aa3370576568c3 Patch
- https://github.com/squid-cache/squid/security/advisories/GHSA-cg5h-v6vc-w33f Vendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/[email protected]/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20231214-0006/ security.netapp.com
- https://github.com/squid-cache/squid/commit/6ea12e8fb590ac6959e9356a81aa3370576568c3 Patch
- https://github.com/squid-cache/squid/security/advisories/GHSA-cg5h-v6vc-w33f Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/09/msg00027.html lists.debian.org
- https://lists.fedoraproject.org/archives/list/[email protected]/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/[email protected]/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20231214-0006/ security.netapp.com