Joined: 12 May 2004
|Posted: Tue Apr 17, 2007 11:26 pm Post subject: [ GLSA 200704-13 ] File: Denial of Service
|Gentoo Linux Security Advisory
Title: File: Denial of Service (GLSA 200704-13)
Date: April 17, 2007
Updated: September 17, 2007
A vulnerability has been discovered in file allowing for a denial of service.
file is a utility that identifies a file format by scanning binary data for patterns.
Vulnerable: = 4.21
Unaffected: >= 4.21-r1
Architectures: All supported architectures
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"
Last edited by GLSA on Tue Sep 18, 2007 4:20 am; edited 1 time in total