USN-4524-1

Paul Dreik discovered that TNEF incorrectly handled filenames. If a user were tricked into opening a specially crafted email attachment, an attacker could possibly use this issue to write arbitrary files to the filesystem or cause TNEF crash, resulting in a denial of service. (CVE-2019-18849)

References

Affected packages

Ubuntu:16.04:LTS / tnef

Package

Name: tnef
Purl: pkg:deb/ubuntu/tnef@1.4.9-1+deb8u4build0.16.04.1?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.4.9-1+deb8u4build0.16.04.1

Affected versions

1.*

1.4.9-1

1.4.9-1+deb8u2build0.16.04.1

1.4.9-1+deb8u3build0.16.04.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.4.9-1+deb8u4build0.16.04.1",
            "binary_name": "tnef"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2019-18849",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4524-1.json"