PoC Index

CVE-2016-2338

CRITICAL 9.8EPSS 4.7%

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.

CVSS v3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
4.68% chance of exploitation in the next 30 days, 91th percentile
Published
2020-02-14
Updated
2024-08-05

Proof-of-concept exploits (2)

References

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