CVE-2018-1000024

Description

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.

7.5

CVSS

Severity: High

CVSS 3.0 •

CVSS 2.0 •

EPSS 18.96% Top 10%

Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory squid-cache.org Vendor Advisory squid-cache.org

Affected: n/a n/a

References

Link	Tags
https://usn.ubuntu.com/3557-1/	third party advisory vendor advisory
https://www.debian.org/security/2018/dsa-4122	third party advisory vendor advisory
http://www.squid-cache.org/Versions/	release notes vendor advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00001.html	third party advisory mailing list
http://www.squid-cache.org/Advisories/SQUID-2018_1.txt	patch vendor advisory
https://usn.ubuntu.com/4059-2/	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-1000024?: CVE-2018-1000024 has been scored as a high severity vulnerability.
How to fix CVE-2018-1000024?: To fix CVE-2018-1000024, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-1000024 being actively exploited in the wild?: It is possible that CVE-2018-1000024 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~19% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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