UBUNTU-CVE-2023-35838

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2023-35838
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-35838.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-35838
Upstream
Published
2023-08-09T23:15:00Z
Modified
2026-01-20T17:36:51Z
Severity
  • 5.7 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The WireGuard client 0.5.3 on Windows insecurely configures the operating system and firewall such that traffic to a local network that uses non-RFC1918 IP addresses is blocked. This allows an adversary to trick the victim into blocking IP traffic to selected IP addresses and services even while the VPN is enabled. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to "LocalNet attack resulting in the blocking of traffic" rather than to only WireGuard.

References

Affected packages

Ubuntu:16.04:LTS / wireguard

Package

Name
wireguard
Purl
pkg:deb/ubuntu/wireguard@1.0.20200513-1~16.04.2?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.0.20200513-1~16.04.1
1.0.20200513-1~16.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "wireguard",
            "binary_version": "1.0.20200513-1~16.04.2"
        },
        {
            "binary_name": "wireguard-tools",
            "binary_version": "1.0.20200513-1~16.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-35838.json"

Ubuntu:18.04:LTS / wireguard

Package

Name
wireguard
Purl
pkg:deb/ubuntu/wireguard@1.0.20200513-1~18.04.2?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.0.20200513-1~18.04.1
1.0.20200513-1~18.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "wireguard",
            "binary_version": "1.0.20200513-1~18.04.2"
        },
        {
            "binary_name": "wireguard-tools",
            "binary_version": "1.0.20200513-1~18.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-35838.json"

Ubuntu:20.04:LTS / wireguard

Package

Name
wireguard
Purl
pkg:deb/ubuntu/wireguard@1.0.20200513-1~20.04.2?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.0.20190913-1ubuntu1
0.0.20191212-1ubuntu1
0.0.20191219-1ubuntu1
1.*
1.0.20200102-1ubuntu1
1.0.20200121-1ubuntu1
1.0.20200121-2ubuntu1
1.0.20200206-1ubuntu1
1.0.20200206-2ubuntu1
1.0.20200319-1ubuntu1
1.0.20200513-1~20.04.1
1.0.20200513-1~20.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "wireguard",
            "binary_version": "1.0.20200513-1~20.04.2"
        },
        {
            "binary_name": "wireguard-tools",
            "binary_version": "1.0.20200513-1~20.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-35838.json"

Ubuntu:22.04:LTS / wireguard

Package

Name
wireguard
Purl
pkg:deb/ubuntu/wireguard@1.0.20210914-1ubuntu2?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.0.20210424-1ubuntu1
1.0.20210914-1ubuntu1
1.0.20210914-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "wireguard",
            "binary_version": "1.0.20210914-1ubuntu2"
        },
        {
            "binary_name": "wireguard-tools",
            "binary_version": "1.0.20210914-1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-35838.json"

Ubuntu:24.04:LTS / wireguard

Package

Name
wireguard
Purl
pkg:deb/ubuntu/wireguard@1.0.20210914-1ubuntu4?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.0.20210914-1ubuntu3
1.0.20210914-1ubuntu4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "wireguard",
            "binary_version": "1.0.20210914-1ubuntu4"
        },
        {
            "binary_name": "wireguard-tools",
            "binary_version": "1.0.20210914-1ubuntu4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-35838.json"