USN-5690-1

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Source
https://ubuntu.com/security/notices/USN-5690-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5690-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5690-1
Upstream
Related
Published
2022-10-19T15:47:17.108025Z
Modified
2025-07-16T08:31:37.228396Z
Summary
libxdmcp vulnerability
Details

It was discovered that libXdmcp was generating weak session keys. A local attacker could possibly use this issue to perform a brute force attack and obtain another user's key.

References

Affected packages

Ubuntu:Pro:14.04:LTS / libxdmcp

Package

Name
libxdmcp
Purl
pkg:deb/ubuntu/libxdmcp@1:1.1.1-1ubuntu0.1~esm1?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.1.1-1ubuntu0.1~esm1

Affected versions

1:1.*

1:1.1.1-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libxdmcp-dev",
            "binary_version": "1:1.1.1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp-dev-dbgsym",
            "binary_version": "1:1.1.1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6",
            "binary_version": "1:1.1.1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6-dbg",
            "binary_version": "1:1.1.1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6-dbgsym",
            "binary_version": "1:1.1.1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6-udeb",
            "binary_version": "1:1.1.1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6-udeb-dbgsym",
            "binary_version": "1:1.1.1-1ubuntu0.1~esm1"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / libxdmcp

Package

Name
libxdmcp
Purl
pkg:deb/ubuntu/libxdmcp@1:1.1.2-1.1ubuntu0.1~esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.1.2-1.1ubuntu0.1~esm1

Affected versions

1:1.*

1:1.1.2-1
1:1.1.2-1.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libxdmcp-dev",
            "binary_version": "1:1.1.2-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp-dev-dbgsym",
            "binary_version": "1:1.1.2-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6",
            "binary_version": "1:1.1.2-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6-dbg",
            "binary_version": "1:1.1.2-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6-dbgsym",
            "binary_version": "1:1.1.2-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6-udeb",
            "binary_version": "1:1.1.2-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libxdmcp6-udeb-dbgsym",
            "binary_version": "1:1.1.2-1.1ubuntu0.1~esm1"
        }
    ]
}