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 a...
CriticalCVSS 9.8
EPSS 4.7%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ruby-lang ruby | = 2.2.2 | No fix listed |
| ruby-lang ruby | = 2.3.0 | No fix listed |
| debian linux | = 8.0 | No fix listed |
References
- www.talosintelligence.com exploit third-party-advisory
- [debian-lts-announce] 20200325 [SECURITY] [DLA 2158-1] ruby2.1 security update mailing-list third-party-advisory
- security.netapp.com third-party-advisory