Vulnerability in Ruby
CVE-2016-2337
Type confusion exists in _cancel_eval Ruby's TclTkIp class method. Attacker passing different type of object than String as "retval" argument can cause arbitrary code execution.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.062 (93.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.062 · newest: 0.062 · change: -0.001
Affected products
- Ruby — versions 2.2.2, 2.3.0 dev
- Ruby-Lang Ruby — versions 2.2.2, 2.3.0
- Tcl Tcl/tk — versions 8.6 or later
Public proof-of-concept exploits
References
- www.talosintelligence.com/reports/TALOS-2016-0031/ (Technical Description, Exploit, VDB Entry, Third Party Advisory)
- www.securityfocus.com/bid/91233 (vdb-entry)
- lists.debian.org/debian-lts-announce/2018/08/msg00028.html (mailing-list)
- security.gentoo.org/glsa/201710-18 (vendor-advisory)
Frequently asked questions
- What is CVE-2016-2337?
- CVE-2016-2337 is a critical-severity vulnerability in Ruby. CVSS score: 9.8/10. Published 2017-01-06.
- How severe is CVE-2016-2337?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-2337 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.