9.8crit
CVE-2016-2338
An exploitable heap overflow vulnerability exists in the Psych::Emitter start_document function of Ruby.
Published 6 y ago · modified 4 mo ago · JSON
CVSS
9.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
4.7%
percentile 92%
Public exploits
0
none known
Summary
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.
Exploit prediction (EPSS)
4.74% probability of exploitation in the next 30 days, higher than 92% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
- CWE-787 Out-of-bounds Write
References
- lists.debian.org /debian-lts-announce/2020/03/msg00032.html · mailing-list, x_transferred
- talosintelligence.com /reports/TALOS-2016-0032/ · x_transferred
- security.netapp.com /advisory/ntap-20221228-0005/ · x_transferred
Sources
- CVE List: CVE-2016-2338
- NVD: CVE-2016-2338
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