CVE-2017-15412 Nokogiri gem, via libxml, is affected by DoS vulnerabilities

What is CVE-2017-15412?

CVE-2017-15412 is a high-severity use after free vulnerability in Debian Debian Linux, published on 28 Aug 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Use after free in libxml2 before 2.9.5, as used in Google Chrome prior to 63.0.3239.84 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Weakness: CWE-416

Which versions are affected by CVE-2017-15412?

2 open source packages ship an affected version, including nokogiri. It affects 6 products.

Products include Debian Debian Linux, Google Chrome, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation, Xmlsoft Libxml2.

How do I fix CVE-2017-15412?

Upgrade nokogiri to 1.8.2 or later.

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-2017-15412 being exploited?

There is no known exploitation of CVE-2017-15412 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2017-15412, DLA-1211-1, DSA-4086-1, ECHO-5578-a69b-6ed0, GHSA-r58r-74gx-6wx3, UBUNTU-CVE-2017-15412 and 1 more.