The vulnerability of the GNU C Library (glibc) is related to the use of memory after it is freed, allowing a hacker to perform a denial-of-service attack.

The vulnerability of the mqnotify function in the GNU C Library glibc is related to the use of memory after it is freed. Exploiting this vulnerability can allow a remote attacker to cause a service failure...

DEBIAN-CVE-2017-11176

The mqnotify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service use-after-free or possibly have unspecified other impact...