USN-5034-1

Philipp Jeitner and Haya Shulman discovered that c-ares incorrectly validated certain hostnames returned by DNS servers. A remote attacker could possibly use this issue to perform Domain Hijacking attacks.

References

Affected packages

Ubuntu:18.04:LTS / c-ares

Package

Name: c-ares
Purl: pkg:deb/ubuntu/c-ares@1.14.0-1ubuntu0.1?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.14.0-1ubuntu0.1

Affected versions

1.*

1.13.0-2

1.13.0-3

1.14.0-1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.14.0-1ubuntu0.1",
            "binary_name": "libc-ares-dev"
        },
        {
            "binary_version": "1.14.0-1ubuntu0.1",
            "binary_name": "libc-ares2"
        },
        {
            "binary_version": "1.14.0-1ubuntu0.1",
            "binary_name": "libc-ares2-dbgsym"
        }
    ]
}

Ubuntu:20.04:LTS / c-ares

Package

Name: c-ares
Purl: pkg:deb/ubuntu/c-ares@1.15.0-1ubuntu0.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.15.0-1ubuntu0.1

Affected versions

1.*

1.15.0-1build1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.15.0-1ubuntu0.1",
            "binary_name": "libc-ares-dev"
        },
        {
            "binary_version": "1.15.0-1ubuntu0.1",
            "binary_name": "libc-ares2"
        },
        {
            "binary_version": "1.15.0-1ubuntu0.1",
            "binary_name": "libc-ares2-dbgsym"
        }
    ]
}