CVE-2019-5427 Billion laughs attack in c3p0

What is CVE-2019-5427?

CVE-2019-5427 is a high-severity vulnerability in Fedoraproject Fedora, published on 22 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

c3p0 version < 0.9.5.4 may be exploited by a billion laughs attack when loading XML configuration due to missing protections against recursive entity expansion when loading configuration.

Weakness: CWE-776

Which versions are affected by CVE-2019-5427?

2 open source packages ship an affected version, including com.mchange:c3p0. It affects 11 products.

Products include Fedoraproject Fedora, Mchange C3p0, Oracle Communications Ip Service Activator, Oracle Communications Session Route Manager, Oracle Documaker, Oracle Enterprise Manager Base Platform and 5 more.

How do I fix CVE-2019-5427?

Upgrade com.mchange:c3p0 to 0.9.5.4 or later.

Is CVE-2019-5427 being exploited?

There is no known exploitation of CVE-2019-5427 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

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-2019-5427, GHSA-84p2-vf58-xhxv, UBUNTU-CVE-2019-5427, USN-5293-1, USN-5293-2, USN-7571-1 and 1 more.