Home/CVE/Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of
CVE

CVE-2024-25111

Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of

Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP Message.

This bug is fixed in Squid version 6.8. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. There is no workaround for this issue.

HIGH · CVSS 8.6 EPSS 0.03051
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-674Uncontrolled Recursion
CWE-674Uncontrolled Recursion
▤

Affected Products & Versions

3
squid-cache squid>= 3.5.27 and < 6.8
fedoraproject fedoraall versions
netapp bluexpall versions
▣

Scoring & Timeline

8.6
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Mar 2024 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

13
suse-csafopenSUSE-SU-2024:13757-1
usnUSN-6728-1
suse-csafSUSE-SU-2024:1113-1
suse-csafSUSE-SU-2024:1114-1
suse-csafSUSE-SU-2024:1115-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.squid-cache.org/Versions/v6/SQUID-2024_1.patchMailing ListPatch
https://github.com/squid-cache/squid/security/advisories/GHSA-72c2-c3wm-8qxcVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7R4KPSO3MQT3KAOZV7LC2GG3CYMCGK7H/Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWQHRDRHDM5PQTU6BHH4C5KGL37X6TVI/Mailing List
https://security.netapp.com/advisory/ntap-20240605-0001/Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/03/msg00009.html
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