CVE-2018-1000024 Denial of service in n/a

What is CVE-2018-1000024?

CVE-2018-1000024 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 9 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Which versions are affected by CVE-2018-1000024?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Squid-Cache Squid.

How do I fix CVE-2018-1000024?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2018-1000024 being exploited?

There is no known exploitation of CVE-2018-1000024 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2018-1000024, DEBIAN-CVE-2018-1000024, GHSA-gh8j-c69q-gf38, UBUNTU-CVE-2018-1000024.