USN-2566-1

Jann Horn discovered that dpkg incorrectly validated signatures when extracting local source packages. If a user or an automated system were tricked into unpacking a specially crafted source package, a remote attacker could bypass signature verification checks.

References

Affected packages

Ubuntu:14.04:LTS / dpkg

Package

Name: dpkg
Purl: pkg:deb/ubuntu/dpkg@1.17.5ubuntu5.4?arch=source&distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.17.5ubuntu5.4

Affected versions

1.*

1.16.12ubuntu1

1.17.1ubuntu1

1.17.5ubuntu1

1.17.5ubuntu2

1.17.5ubuntu3

1.17.5ubuntu4

1.17.5ubuntu5

1.17.5ubuntu5.1

1.17.5ubuntu5.2

1.17.5ubuntu5.3

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "dpkg",
            "binary_version": "1.17.5ubuntu5.4"
        },
        {
            "binary_name": "dpkg-dev",
            "binary_version": "1.17.5ubuntu5.4"
        },
        {
            "binary_name": "dselect",
            "binary_version": "1.17.5ubuntu5.4"
        },
        {
            "binary_name": "libdpkg-dev",
            "binary_version": "1.17.5ubuntu5.4"
        },
        {
            "binary_name": "libdpkg-perl",
            "binary_version": "1.17.5ubuntu5.4"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2015-0840",
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:14.04:LTS"
}