CVE-2018-10191
moderate-risk
Published 2018-04-17
In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code.
Do I need to act?
~
1.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 1905091634a6a2925c911484434448e568330626
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (2)
References (6)
43
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
4/34 · Minimal
Exposure
7/34 · Low