UBUNTU-CVE-2013-7345

The BEGIN regular expression in the awk script detector in magic/Magdir/commands in file before 5.15 uses multiple wildcards with unlimited repetitions, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted ASCII file that triggers a large amount of backtracking, as demonstrated via a file with many newline characters.

References

Affected packages

Ubuntu:14.04:LTS / file

Package

Name: file
Purl: pkg:deb/ubuntu/file@1:5.14-2ubuntu3.1?arch=source&distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:5.14-2ubuntu3.1

Affected versions

5.*

5.11-2ubuntu4

1:5.*

1:5.14-2ubuntu1

1:5.14-2ubuntu2

1:5.14-2ubuntu3

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:5.14-2ubuntu3.1",
            "binary_name": "file"
        },
        {
            "binary_version": "1:5.14-2ubuntu3.1",
            "binary_name": "libmagic-dev"
        },
        {
            "binary_version": "1:5.14-2ubuntu3.1",
            "binary_name": "libmagic1"
        },
        {
            "binary_version": "1:5.14-2ubuntu3.1",
            "binary_name": "python-magic"
        },
        {
            "binary_version": "1:5.14-2ubuntu3.1",
            "binary_name": "python3-magic"
        }
    ],
    "availability": "No subscription required"
}