Improper Link Resolution Before File Access ('Link Following')
syslogd in the syslog subsystem in Apple iOS before 8 and Apple TV before 7 allows local users to change the permissions of arbitrary files via a symlink attack on an unspecified file.
CWE-59 - Improper Link Resolution Before File Access
'Improper link resolution before file access' occurs when software accesses a file resource but fails to verify that the file isn't a link or shortcut to another file. An attacker can potentially gain access to arbitrary files and from there the impact can vary, depending on the application, from sensitive data exposure to remote code execution.