1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200705-25 / file |
| Release Date | May 31, 2007 |
| Latest Revision | June 01, 2007: 02 |
| Impact | high |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| sys-apps/file | < 4.21 | >= 4.21 | x86 ppc hppa |
Related bugreports: #179583
An integer overflow vulnerability has been reported in file allowing for the user-assisted execution of arbitrary code.
file is a utility that guesses a file format by scanning binary data for patterns.
Colin Percival from FreeBSD reported that the previous fix for the file_printf() buffer overflow introduced a new integer overflow.
A remote attacker could entice a user to run the file program on an overly large file (more than 1Gb) that would trigger an integer overflow on 32-bit systems, possibly leading to the execution of arbitrary code with the rights of the user running file.
There is no known workaround at this time.
Since file is a system package, all Gentoo users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/file-4.21" |