CVE-2016-2338

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.

• CWE-787

• http://www.talosintelligence.com/reports/TALOS-2016-0032/Exploit, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/03/msg00032.htmlMailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20221228-0005/Third Party Advisory
• http://www.talosintelligence.com/reports/TALOS-2016-0032/Exploit, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/03/msg00032.htmlMailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20221228-0005/Third Party Advisory

Published

Sep 29, 2022

Last Modified

Jun 17, 2026

Status

Modified

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