UBUNTU-CVE-2020-6840

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Source
https://ubuntu.com/security/CVE-2020-6840
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-6840.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-6840
Related
Published
2020-01-11T03:15:00Z
Modified
2025-04-23T15:14:52Z
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
Summary
[none]
Details

In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c.

References

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.1.0+20150817+gita1731254-1
1.1.0+20150906+git1cbbb7e1-1
1.2.0+20160315+git4f20d58a-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / mruby

Package

Name
mruby
Purl
pkg:deb/ubuntu/mruby@1.4.0-1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.0-1
1.3.0+20170925+git38185028-1
1.3.0+20171029+git77edafb0-1
1.4.0-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / mruby

Package

Name
mruby
Purl
pkg:deb/ubuntu/mruby@2.0.0-1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.0.0-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / mruby

Package

Name
mruby
Purl
pkg:deb/ubuntu/mruby@3.0.0-3?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.1.2-3

3.*

3.0.0-1
3.0.0-3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / mruby

Package

Name
mruby
Purl
pkg:deb/ubuntu/mruby@3.3.0-1?arch=source&distro=oracular

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.2.0-2
3.3.0-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / mruby

Package

Name
mruby
Purl
pkg:deb/ubuntu/mruby@3.2.0-2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.2.0-1
3.2.0-2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:25.04 / mruby

Package

Name
mruby
Purl
pkg:deb/ubuntu/mruby@3.3.0-1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.3.0-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}