1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200704-13 / file |
| Release Date | April 17, 2007 |
| Latest Revision | September 17, 2007: 02 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| sys-apps/file | = 4.21 | >= 4.21-r1 | All supported architectures |
Related bugreports: #174217
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.
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:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/file-4.20-r1" |