UBUNTU-CVE-2026-23679

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Source
https://ubuntu.com/security/CVE-2026-23679
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23679.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-23679
Upstream
Withdrawn
2026-06-04T10:59:28Z
Published
2026-05-27T14:16:00Z
Modified
2026-06-04T12:45:25Z
Severity
  • 6.2 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

libusb before version 1.0.30 contains a NULL pointer dereference vulnerability that allows attackers to crash applications by supplying a malformed USB configuration descriptor where an interface claims bNumEndpoints greater than zero but is followed by a class-specific descriptor whose bLength exceeds the remaining buffer size, causing parse_interface() to return early without allocating the endpoint array. Attackers can exploit this flaw through libusb_get_active_config_descriptor or libusb_get_config_descriptor by providing crafted descriptors via virtualized USB passthrough, file-based descriptor parsing, or network sources, causing any application iterating over endpoints to dereference a NULL endpoint pointer and crash.

References

Affected packages

Ubuntu:14.04:LTS
libusb

Package

Name
libusb
Purl
pkg:deb/ubuntu/libusb?arch=source&distro=trusty

Affected ranges

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

Affected versions

2:0.*
2:0.1.12-23.2ubuntu1
2:0.1.12-23.3
2:0.1.12-23.3ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libusb++-0.1-4c2",
            "binary_version": "2:0.1.12-23.3ubuntu1"
        },
        {
            "binary_name": "libusb-0.1-4",
            "binary_version": "2:0.1.12-23.3ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23679.json"
Ubuntu:16.04:LTS
libusb

Package

Name
libusb
Purl
pkg:deb/ubuntu/libusb?arch=source&distro=xenial

Affected ranges

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

Affected versions

2:0.*
2:0.1.12-27
2:0.1.12-28

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libusb++-0.1-4v5",
            "binary_version": "2:0.1.12-28"
        },
        {
            "binary_name": "libusb-0.1-4",
            "binary_version": "2:0.1.12-28"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23679.json"
Ubuntu:18.04:LTS
libusb

Package

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

Affected ranges

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

Affected versions

2:0.*
2:0.1.12-31

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libusb-0.1-4",
            "binary_version": "2:0.1.12-31"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23679.json"
Ubuntu:20.04:LTS
libusb

Package

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

Affected ranges

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

Affected versions

2:0.*
2:0.1.12-32

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libusb-0.1-4",
            "binary_version": "2:0.1.12-32"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23679.json"
Ubuntu:22.04:LTS
libusb

Package

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

Affected ranges

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

Affected versions

2:0.*
2:0.1.12-32build2
2:0.1.12-32build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libusb-0.1-4",
            "binary_version": "2:0.1.12-32build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23679.json"
Ubuntu:24.04:LTS
libusb

Package

Name
libusb
Purl
pkg:deb/ubuntu/libusb?arch=source&distro=noble

Affected ranges

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

Affected versions

2:0.*
2:0.1.12-32build3
2:0.1.12-33
2:0.1.12-35
2:0.1.12-35build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libusb-0.1-4",
            "binary_version": "2:0.1.12-35build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23679.json"
Ubuntu:25.10
libusb

Package

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

Affected ranges

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

Affected versions

2:0.*
2:0.1.12-35build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libusb-0.1-4",
            "binary_version": "2:0.1.12-35build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23679.json"
Ubuntu:26.04:LTS
libusb

Package

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

Affected ranges

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

Affected versions

2:0.*
2:0.1.12-35build1
2:0.1.12-35build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libusb-0.1-4",
            "binary_version": "2:0.1.12-35build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-23679.json"