CVE-2016-2338

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 9.69% Top 10%
Third-Party Advisory talosintelligence.com Third-Party Advisory debian.org Third-Party Advisory netapp.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.debian.org/debian-lts-announce/2020/03/msg00032.html third party advisory mailing list
http://www.talosintelligence.com/reports/TALOS-2016-0032/ third party advisory exploit
https://security.netapp.com/advisory/ntap-20221228-0005/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2016-2338?
CVE-2016-2338 has been scored as a critical severity vulnerability.
How to fix CVE-2016-2338?
To fix CVE-2016-2338, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2338 being actively exploited in the wild?
It is possible that CVE-2016-2338 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~10% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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