Home/CVE/The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer
CVE

CVE-2018-1000024

The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer

The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer Handling vulnerability in ESI Response Processing that can result in Denial of Service for all clients using the proxy.. This attack appear to be exploitable via Remote server delivers an HTTP response payload containing valid but unusual ESI syntax.. This vulnerability appears to have been fixed in 4.0.23 and later.

HIGH · CVSS 7.5 EPSS 0.09177
Schedule remediation
  • EPSS percentile: top 7% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

4
squid-cache squid>= 3.0 and <= 3.5.27
squid-cache squid>= 4.0 and <= 4.0.22
debian linuxall versions
canonical ubuntu linuxall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · cve@mitre.org
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 NVD09 Feb 2018 · 11:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

6
suse-csafopenSUSE-SU-2024:11403-1
usnUSN-4059-2
rhsaRHSA-2020:1068Moderate
suse-csafSUSE-SU-2018:0752-1
suse-csafSUSE-SU-2018:0636-1
🔗

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/Advisories/SQUID-2018_1.txtPatchVendor Advisory
http://www.squid-cache.org/Versions/Release NotesVendor Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00001.htmlMailing ListThird Party Advisory
https://usn.ubuntu.com/3557-1/Third Party Advisory
https://usn.ubuntu.com/4059-2/
https://www.debian.org/security/2018/dsa-4122Third Party Advisory
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