UBUNTU-CVE-2020-6838
- Source
- https://ubuntu.com/security/CVE-2020-6838
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-6838.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-6838
- Upstream
- Published
- 2020-01-11T03:15:00Z
- Modified
- 2025-07-14T06:45:29.651748Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- - medium
- Summary
- [none]
- Details
-
In mruby 2.1.0, there is a use-after-free in hashvaluesat in mrbgems/mruby-hash-ext/src/hash-ext.c.
- References
-
- https://ubuntu.com/security/CVE-2020-6838
- https://github.com/mruby/mruby/issues/4926
- https://github.com/mruby/mruby/commit/fc8fb41451b07b3fda0726ba80e88e509ad02452
- https://github.com/mruby/mruby/commit/70e574689664c10ed2c47581999cc2ce3e3c5afb
- https://github.com/mruby/mruby/commit/2742ded32fe18f88833d76b297f5c2170b6880c3
- https://www.cve.org/CVERecord?id=CVE-2020-6838
Affected packages
Ubuntu:Pro:16.04:LTS / mruby
Package
- Name
- mruby
- Purl
- pkg:deb/ubuntu/mruby@1.2.0+20160315+git4f20d58a-1?arch=source&distro=esm-apps/xenial
Ubuntu:Pro:18.04:LTS / mruby
Package
- Name
- mruby
- Purl
- pkg:deb/ubuntu/mruby@1.4.0-1?arch=source&distro=esm-apps/bionic
Ubuntu:Pro:20.04:LTS / mruby
Package
- Name
- mruby
- Purl
- pkg:deb/ubuntu/mruby@2.0.0-1?arch=source&distro=esm-apps/focal
Ubuntu:22.04:LTS / mruby
Package
- Name
- mruby
- Purl
- pkg:deb/ubuntu/mruby@3.0.0-3?arch=source&distro=jammy
Ubuntu:24.04:LTS / mruby
Package
- Name
- mruby
- Purl
- pkg:deb/ubuntu/mruby@3.2.0-2?arch=source&distro=noble