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CVE-2019-12854

7.5 · HIGH

Due to incorrect string termination, Squid cachemgr.cgi 4.0 through 4.7 may access unallocated memory.

Published Aug 15, 2019EPSS 11.71%

Overview

CVE-2019-12854 is a high-severity vulnerability. It was published on August 15, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Due to incorrect string termination, Squid cachemgr.cgi 4.0 through 4.7 may access unallocated memory. On systems with memory access protections, this can cause the CGI process to terminate unexpectedly, resulting in a denial of service for all clients using it.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2019-11/msg00053.htmlReflists.opensuse.org/opensuse-security-announce/2019-11/msg00056.htmlRefwww.squid-cache.org/Advisories/SQUID-2019_1.txtRefwww.squid-cache.org/Versions/v4/changesets/squid-4-2981a957716c61ff7e21eee1d7d6eb5a237e466d.patchRefbugs.squid-cache.org/show_bug.cgi?id=4937Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/Refseclists.org/bugtraq/2019/Aug/42Refusn.ubuntu.com/4213-1/Refwww.debian.org/security/2019/dsa-4507Reflists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html

How CyberStrike helps

Frequently asked questions

What is CVE-2019-12854?

CVE-2019-12854 is a high-severity vulnerability. It was published on August 15, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2019-12854?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-12854?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-12854?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-12854 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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