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.
EPSS: 0.008 (74.5th percentile) — read the EPSS interpretation.
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.
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
- cret@cert.org (Technical Description, Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- 91233 (vdb-entry, x_refsource_BID)
- [debian-lts-announce] 20180827 [SECURITY] [DLA 1480-1] ruby2.1 security update (mailing-list, x_refsource_MLIST)
- GLSA-201710-18 (vendor-advisory, x_refsource_GENTOO)
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.