USN-439-2: file vulnerability

Publication date

11 June 2007

Overview

file vulnerability


Details

USN-439-1 fixed a vulnerability in file. The original fix did not
fully solve the problem. This update provides a more complete solution.

Original advisory details:

Jean-Sebastien Guay-Leroux discovered that “file” did not correctly
check the size of allocated heap memory. If a user were tricked into
examining a specially crafted file with the “file” utility, a remote
attacker could execute arbitrary code with user privileges.

USN-439-1 fixed a vulnerability in file. The original fix did not
fully solve the problem. This update provides a more complete solution.

Original advisory details:

Jean-Sebastien Guay-Leroux discovered that “file” did not correctly
check the size of allocated heap memory. If a user were tricked into
examining a specially crafted file with the “file” utility, a remote
attacker could execute arbitrary code with user privileges.

Update instructions

In general, a standard system upgrade is sufficient to effect the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
7.04 feisty libmagic1 –  4.19-1ubuntu2.1
6.10 edgy libmagic1 –  4.17-2ubuntu1.2
6.06 dapper libmagic1 –  4.16-0ubuntu3.2

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