CVE-2016-6251

It was found that shadow-utils-4.2.1 had a potentially unsafe use of getlogin with the concern that the utmp entry might have a spoofed username associated with a correct uid (CVE-2016-6251).

It was found that shadow-utils-4.2.1 had an incorrect integer handling problem where it looks like the int wrap is exploitable as a LPE, as the kernel is using 32bit uid's that are truncated from unsigned longs (64bit on x64) as returned by simple strtoul() [map write()]. (CVE-2016-6252).