UBUNTU-CVE-2025-12875

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Source
https://ubuntu.com/security/CVE-2025-12875
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-12875.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2025-12875
Upstream
Published
2025-11-07T21:15:00Z
Modified
2026-01-20T18:53:07.169424Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 1.9 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A weakness has been identified in mruby 3.4.0. This vulnerability affects the function aryfillexec of the file mrbgems/mruby-array-ext/src/array.c. Executing manipulation of the argument start/length can lead to out-of-bounds write. The attack needs to be launched locally. The exploit has been made available to the public and could be exploited. This patch is called 93619f06dd378db6766666b30c08978311c7ec94. It is best practice to apply a patch to resolve this issue.

References

Affected packages

Ubuntu:16.04:LTS
mruby

Package

Name
mruby
Purl
pkg:deb/ubuntu/mruby@1.2.0+20160315+git4f20d58a-1?arch=source&distro=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 

{
    "binaries": [
        {
            "binary_version": "1.2.0+20160315+git4f20d58a-1",
            "binary_name": "libmruby-dev"
        },
        {
            "binary_version": "1.2.0+20160315+git4f20d58a-1",
            "binary_name": "mruby"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-12875.json"
Ubuntu:18.04:LTS
mruby

Package

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

{
    "binaries": [
        {
            "binary_version": "1.4.0-1",
            "binary_name": "libmruby-dev"
        },
        {
            "binary_version": "1.4.0-1",
            "binary_name": "mruby"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-12875.json"
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 

{
    "binaries": [
        {
            "binary_version": "2.0.0-1",
            "binary_name": "libmruby-dev"
        },
        {
            "binary_version": "2.0.0-1",
            "binary_name": "mruby"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-12875.json"
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 

{
    "binaries": [
        {
            "binary_version": "3.0.0-3",
            "binary_name": "libmruby-dev"
        },
        {
            "binary_version": "3.0.0-3",
            "binary_name": "mruby"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-12875.json"
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 

{
    "binaries": [
        {
            "binary_version": "3.2.0-2",
            "binary_name": "libmruby-dev"
        },
        {
            "binary_version": "3.2.0-2",
            "binary_name": "mruby"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-12875.json"
Ubuntu:25.10
mruby

Package

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

Affected ranges

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

Affected versions

3.*
3.3.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.3.0-1",
            "binary_name": "libmruby-dev"
        },
        {
            "binary_version": "3.3.0-1",
            "binary_name": "mruby"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-12875.json"