UBUNTU-CVE-2023-23456

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Source
https://ubuntu.com/security/CVE-2023-23456
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-23456.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-23456
Upstream
Published
2023-01-12T19:15:00Z
Modified
2026-01-20T17:36:53.321766Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.

References

Affected packages

Ubuntu:24.04:LTS / upx-ucl

Package

Name
upx-ucl
Purl
pkg:deb/ubuntu/upx-ucl@4.2.2-3?arch=source&distro=noble

Affected ranges

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

Affected versions

3.*

3.96-3

4.*

4.2.2-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "upx-ucl",
            "binary_version": "4.2.2-3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-23456.json"

Ubuntu:25.10 / upx-ucl

Package

Name
upx-ucl
Purl
pkg:deb/ubuntu/upx-ucl@4.2.4-1.1?arch=source&distro=questing

Affected ranges

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

Affected versions

4.*

4.2.4-1
4.2.4-1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "upx-ucl",
            "binary_version": "4.2.4-1.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-23456.json"