CVE catalog
CVE-2020-15866
mruby: CVE-2020-15866
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.13% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | mruby | sid | 4.0.0-1 | fixed |
| Debian | mruby | forky | 4.0.0-1 | fixed |
| Debian | mruby | trixie | 3.3.0-1 | fixed |
| Debian | mruby | bookworm | 3.1.0-3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | mruby | source | sid | 2.1.2-1 | not yet assigned | Not reported | [972051] |
| Debian | mruby | source | forky | 2.1.2-1 | not yet assigned | Not reported | [972051] |
| Debian | mruby | source | trixie | 2.1.2-1 | not yet assigned | Not reported | [972051] |
| Debian | mruby | source | bookworm | 2.1.2-1 | not yet assigned | Not reported | [972051] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libmruby-dev]Fixed
Source package: [mruby]
Details (2)
3.1.0-3· amd64 · bookwormFixed · Fixed:
2.1.2-1dsa · mruby · debian · bookworm; dsa · mruby · debian · 12
3.1.0-3· arm64 · bookwormFixed · Fixed:
2.1.2-1dsa · mruby · debian · bookworm; dsa · mruby · debian · 12
- [mruby]Fixed
Details (2)
3.1.0-3· amd64 · bookwormFixed · Fixed:
2.1.2-1dsa · mruby · debian · bookworm; dsa · mruby · debian · 12
3.1.0-3· arm64 · bookwormFixed · Fixed:
2.1.2-1dsa · mruby · debian · bookworm; dsa · mruby · debian · 12
[Debian 13 (Trixie)]
- [libmruby-dev]Fixed
Source package: [mruby]
Details (2)
3.3.0-1· amd64 · trixieFixed · Fixed:
2.1.2-1dsa · mruby · debian · 13
3.3.0-1+b1· arm64 · trixieFixed · Fixed:
2.1.2-1dsa · mruby · debian · 13
- [mruby]Fixed
Source package: [mruby]
Details (2)
3.3.0-1· amd64 · trixieFixed · Fixed:
2.1.2-1dsa · mruby · debian · 13
3.3.0-1+b1· arm64 · trixieFixed · Fixed:
2.1.2-1dsa · mruby · debian · 13
Observed: