CVE-2018-20592 Use after free in n/a

What is CVE-2018-20592?

CVE-2018-20592 is a medium-severity use after free vulnerability in Fedoraproject Fedora, published on 30 Dec 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

In Mini-XML (aka mxml) v2.12, there is a use-after-free in the mxmlAdd function of the mxml-node.c file. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted xml file, as demonstrated by mxmldoc.

Weakness: CWE-416

Which versions are affected by CVE-2018-20592?

It affects 2 products.

Products include Fedoraproject Fedora, Msweet Mini-Xml.

How do I fix CVE-2018-20592?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2018-20592 being exploited?

There is no known exploitation of CVE-2018-20592 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2018-20592, GHSA-5j9x-g954-9jrp, UBUNTU-CVE-2018-20592.