UBUNTU-CVE-2016-2338
Dashboard / Vulnerabilities / UBUNTU-CVE-2016-2338
Summary:
Details: An exploitable heap overflow vulnerability exists in the Psych::Emitter start_document function of Ruby. In Psych::Emitter start_document function heap buffer "head" allocation is made based on tags array length. Specially constructed object passed as element of tags array can increase this array size after mentioned allocation and cause heap overflow.
References: https://ubuntu.com/security/CVE-2016-2338, http://www.talosintelligence.com/reports/TALOS-2016-0032/, https://www.cve.org/CVERecord?id=CVE-2016-2338
Affected packages
Package
Name: ruby2.3
Purl: pkg:deb/ubuntu/[email protected]~ubuntu16.04.14?arch=source&distro=xenial
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -2.3.1-2~ubuntu16.04.14
Affected versions
2.3.0-1
2.3.0-2
2.3.0-4ubuntu2
2.3.0-4ubuntu3
2.3.0-5ubuntu1
2.3.1-2~16.04
2.3.1-2~16.04.2
2.3.1-2~16.04.4
2.3.1-2~16.04.5
2.3.1-2~16.04.6
2.3.1-2~16.04.7
2.3.1-2~16.04.9
2.3.1-2~16.04.10
2.3.1-2~16.04.11
2.3.1-2~16.04.12
2.3.1-2~ubuntu16.04.13
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
