USN-4820-1: S-nail vulnerability
Publication date
15 March 2021
Overview
S-nail could be made to overwrite files as the administrator.
Releases
Packages
- s-nail - feature-rich BSD mail(1)
Details
It was discovered that S-nail incorrectly handled paths. An attacker could
possible use this issue to write arbitrary files and escalate privileges.
It was discovered that S-nail incorrectly handled paths. An attacker could
possible use this issue to write arbitrary files and escalate privileges.
Update instructions
In general, a standard system update will make all 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 | ||
|---|---|---|---|
| 16.04 LTS xenial | heirloom-mailx – 14.8.6-1ubuntu0.1~esm1 | ||
| s-nail – 14.8.6-1ubuntu0.1~esm1 | |||
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.