A security issue affects the following Ubuntu releases:
Ubuntu 4.10 (Warty Warthog)
The following packages are affected:
The problem can be corrected by upgrading the affected package to version 1:4.2.1-10ubuntu0.2. In general, a standard system upgrade is sufficient to effect the necessary changes.
Joey Hess discovered that "unshar" created temporary files in an insecure manner. This could allow a symbolic link attack to create or overwrite arbitrary files with the privileges of the user invoking the program.