Out-of-Bounds Affecting ruby2.1 package, versions <2.1.5-2+deb8u4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN8-RUBY21-280407
- published6 Jan 2017
- disclosed6 Jan 2017
Introduced: 6 Jan 2017
CVE-2016-2339 (opens in a new tab)How to fix?
Upgrade Debian:8 ruby2.1 to version 2.1.5-2+deb8u4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruby2.1 package and not the ruby2.1 package as distributed by Debian.
See How to fix? for Debian:8 relevant fixed versions and status.
An exploitable heap overflow vulnerability exists in the Fiddle::Function.new "initialize" function functionality of Ruby. In Fiddle::Function.new "initialize" heap buffer "arg_types" allocation is made based on args array length. Specially constructed object passed as element of args array can increase this array size after mentioned allocation and cause heap overflow.