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Vulnerabilities
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CVE-2016-2339

Updated on 06 Jan 2017

Severity

9.8 Critical severity

Details

CVSS score
9.8
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

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.

Details

Affected product:
AlmaLinux 9.2 ESU , Alpine Linux 3.22 , CentOS 7 ELS , Debian 11 , Debian 12 , Debian 13 , EL 10 , EL 8 , EL 9 , Ubuntu 22.04 , Ubuntu 24.04
Affected packages:
ruby @ 2.7 (+10 more)
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.

Fixes