CVE-2023-49286

HIGH EPSS 95.1%
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 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.

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
95.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 3

CWE-253
CWE-617
CWE-754

Affected Products 1

VendorProductVersionRange
squid-cachesquid* ≤6.4

References 7

  • squid-cache.org http://www.squid-cache.org/Versions/v6/SQUID-2023_8.patch
    Broken Link
  • github.com https://github.com/squid-cache/squid/commit/6014c6648a2a54a4ecb7f952ea1163e0798f9264
    Patch
  • github.com https://github.com/squid-cache/squid/security/advisories/GHSA-xggx-9329-3c27
    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/6014c6648a2a54a4ecb7f952ea1163e0798f9264
    Patch