CVE-2018-10191
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Mruby
PublishedApr 17, 2018
First seenApr 17, 2018
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mruby mruby | v ≤ 1.4.0 | — |
| debian debian_linux | 9.0 | — |
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