CVE-2023-49285

HIGH EPSS 99.8%
Published Dec 4, 20232y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Dec 4, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

Description

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
99.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-125 Out-of-bounds Read Memory Safety
CWE-126

Affected Products 1

VendorProductVersionRange
squid-cachesquid* ≤6.4

References 9

  • squid-cache.org http://www.squid-cache.org/Versions/v5/SQUID-2023_7.patch
    Broken Link
  • squid-cache.org http://www.squid-cache.org/Versions/v6/SQUID-2023_7.patch
    Broken Link
  • github.com https://github.com/squid-cache/squid/commit/77b3fb4df0f126784d5fd4967c28ed40eb8d521b
    Patch
  • github.com https://github.com/squid-cache/squid/commit/deee944f9a12c9fd399ce52f3e2526bb573a9470
    Patch
  • github.com https://github.com/squid-cache/squid/security/advisories/GHSA-8w9r-p88v-mmx9
    Vendor Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/
  • security.netapp.com https://security.netapp.com/advisory/ntap-20240119-0004/

Remediation

  • github.com https://github.com/squid-cache/squid/commit/77b3fb4df0f126784d5fd4967c28ed40eb8d521b
    Patch
  • github.com https://github.com/squid-cache/squid/commit/deee944f9a12c9fd399ce52f3e2526bb573a9470
    Patch