CVE-2020-15866
9.8
CRITICAL
CVSS 3.1
EPSS 0.65%
Description
mruby through 2.1.2-rc has a heap-based buffer overflow in the mrb_yield_with_class function in vm.c because of incorrect VM stack handling. It can be triggered via the stack_copy function.
How to fix CVE-2020-15866
To remediate CVE-2020-15866, upgrade the affected package to a fixed version below.
- Debian/mruby—upgrade to 2.1.2-1 or later
Is CVE-2020-15866 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.1.2-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |