Buffer overflow in Ruby-lang Ruby
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 obje…
Vulnerability class: Buffer Overflow
EPSS: 0.046 (90.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Ruby-lang Ruby — versions 2.2.2, 2.3.0
- Debian Debian_linux — versions 8.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cret@cert.org (mailing-list, Mailing List, Third Party Advisory)
- cret@cert.org (Exploit, Third Party Advisory)
- cret@cert.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2016-2338?
- CVE-2016-2338 is a critical-severity vulnerability in Ruby-lang Ruby, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-09-29.
- How severe is CVE-2016-2338?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-2338 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.