USN-1065-1: shadow vulnerability
15 February 2011
Newline injection possible into /etc/passwd
- shadow - system login tools
Kees Cook discovered that some shadow utilities did not correctly validate
user input. A local attacker could exploit this flaw to inject newlines into
the /etc/passwd file. If the system was configured to use NIS, this could
lead to existing NIS groups or users gaining or losing access to the system,
resulting in a denial of service or unauthorized access.
The problem can be corrected by updating your system to the following package versions:
In general, a standard system update will make all the necessary changes.