| Name | CVE-2020-15866 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2996-1 |
| Debian Bugs | 972051 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| mruby (PTS) | buster | 2.0.0-1 | vulnerable |
| bullseye | 2.1.2-3 | fixed |
| bookworm | 3.1.0-3 | fixed |
| sid, trixie | 3.3.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| mruby | source | stretch | 1.2.0+20161228+git30d5424a-1+deb9u1 | | DLA-2996-1 | |
| mruby | source | (unstable) | 2.1.2-1 | | | 972051 |
Notes
[buster] - mruby <no-dsa> (Minor issue)
https://github.com/mruby/mruby/issues/5042
https://github.com/mruby/mruby/commit/6334949ba69363cb909a57d6871895bd6d98bb6b (3.0.0-preview)
https://github.com/mruby/mruby/commit/63956036e116ef6a33a91e16348c4d1a09f6f72c (2.1.2-rc2)