CVE-2016-2338
9.8
CRITICAL · CVSS 3.1 · EPSS 4.7% (pctl 92)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.68% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2022-09-29 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| debian | debian linux |
| ruby-lang | ruby |
References
- http://www.talosintelligence.com/reports/TALOS-2016-0032/
- https://lists.debian.org/debian-lts-announce/2020/03/msg00032.html
- https://security.netapp.com/advisory/ntap-20221228-0005/
- http://www.talosintelligence.com/reports/TALOS-2016-0032/
- https://lists.debian.org/debian-lts-announce/2020/03/msg00032.html
- https://security.netapp.com/advisory/ntap-20221228-0005/
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