CVSS v3
9.8
CRITICAL
EPSS Score
13.5%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
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.
Active exploitation of CVE-2016-2338 has not been confirmed. The EPSS score is 13.5%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2016-2338 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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Ranked by exploit probability (EPSS).