file: Integer overflow

file: Integer overflow An integer overflow vulnerability has been reported in file allowing for the user-assisted execution of arbitrary code. file May 31, 2007 June 01, 2007: 02 179583 remote 4.21 4.21

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:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/file-4.21"

CVE-2007-2799 falco jaervosz