CVE-2018-1000024
HIGH severity · CVSS 7.5
7.5CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)8%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://www.squid-cache.org/Advisories/SQUID-2018_1.txt ↗
Additional information
- NVD record
- http://www.squid-cache.org/Advisories/SQUID-2018_1.txtPatch
- http://www.squid-cache.org/Versions/Advisory
- https://lists.debian.org/debian-lts-announce/2018/02/msg00001.htmlAdvisory
- https://usn.ubuntu.com/3557-1/Advisory
- https://usn.ubuntu.com/4059-2/
- https://www.debian.org/security/2018/dsa-4122Advisory