🛡️ UBUNTU-CVE-2016-2338
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-09-29
Updated 2026-06-08
Modified 2025-07-16
Fix URL N/A

Affected Packages

Software From version Fixed in
ruby-psych 2.2.4-6build4
ruby2.3 2.3.1-2~ubuntu16.04.14
ruby2.5 2.5.1-1ubuntu1.6

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