Race conditions were discovered in mutt’s handling of temporary files. Under certain conditions when using a shared temp directory (the default), other local users could overwrite arbitrary files owned by the user running mutt. This vulnerability is more likely when the temp directory is over NFS.
The problem can be corrected by updating your system to the following package versions:
1 November 2006
A security issue affects these releases of Ubuntu and its derivatives:
Race conditions were discovered in mutt’s handling of temporary files.
Under certain conditions when using a shared temp directory (the
default), other local users could overwrite arbitrary files owned by the
user running mutt. This vulnerability is more likely when the temp
directory is over NFS.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to restart mutt to effect the necessary changes.
Vulmon