UBUNTU-CVE-2026-8258

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-8258
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8258.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-8258
Upstream
Published
2026-05-11T02:16:00Z
Modified
2026-06-24T11:00:37.690394135Z
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
  • 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 flaw has been found in Squirrel up to 3.2. Impacted is the function validate_format in the library sqstdlib/sqstdstring.cpp. Executing a manipulation can lead to stack-based buffer overflow. The attack can only be executed locally. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

References

Affected packages

Ubuntu:18.04:LTS / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.1-4
3.1-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-5"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8258.json"

Ubuntu:20.04:LTS / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=focal

Affected ranges

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

Affected versions

3.*
3.1-8
3.1-8build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-8build1"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-8build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8258.json"

Ubuntu:22.04:LTS / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.1-8build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-8build1"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-8build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8258.json"

Ubuntu:25.10 / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=questing

Affected ranges

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

Affected versions

3.*
3.1-8.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-8.2"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-8.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8258.json"

Ubuntu:26.04:LTS / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=resolute

Affected ranges

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

Affected versions

3.*
3.1-8.2
3.1-8.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-8.3"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-8.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8258.json"