Summary
Heap-based buffer overflow in nokogiri
Heap-based buffer overflow in the xmlGROW function in parser.c in libxml2 before 2.9.3. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause that application to use an excessive amount of CPU, leak potentially sensitive information, or crash the application.
Impact
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is CVE-2015-7499? CVE-2015-7499 is a medium-severity security vulnerability in nokogiri (rubygems), affecting versions >= 1.6.0, <= 1.6.7.1. It is fixed in 1.6.7.2.
- Which versions of nokogiri are affected by CVE-2015-7499? nokogiri (rubygems) versions >= 1.6.0, <= 1.6.7.1 is affected.
- Is there a fix for CVE-2015-7499? Yes. CVE-2015-7499 is fixed in 1.6.7.2. Upgrade to this version or later.
- Is CVE-2015-7499 exploitable, and should I be worried? Whether CVE-2015-7499 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2015-7499 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2015-7499? Upgrade
nokogirito 1.6.7.2 or later.