File: Denial of Service

File: Denial of Service A vulnerability has been discovered in file allowing for a denial of service. file 2007-04-17 2007-09-17 174217 remote 4.21-r1 4.21

file is a utility that identifies a file format by scanning binary data for patterns.

Conor Edberg discovered an error in the way file processes a specific regular expression.

A remote attacker could entice a user to open a specially crafted file, using excessive CPU ressources and possibly leading to a Denial of Service. Note that this vulnerability could be also triggered through an automatic file scanner like amavisd-new.

There is no known workaround at this time.

All file users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/file-4.20-r1"

CVE-2007-2026 aetius vorlon p-y