| Name | CVE-2020-6840 |
| Description | In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| mruby (PTS) | 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 | (unstable) | (not affected) | | | |
Notes
- mruby <not-affected> (Vulnerable code introduced later)
https://github.com/mruby/mruby/issues/4927
Introduced by: https://github.com/mruby/mruby/commit/694089fafe4eae36c379a3d918d540eb0c4b8661
Fixed by: https://github.com/mruby/mruby/commit/fc8fb41451b07b3fda0726ba80e88e509ad02452