GNU Libc current is affected by: Mitigation bypass. The impact is: Attacker may bypass stack guard protection. The component is: nptl. The attack vector is: Exploit stack buffer overflow vulnerability and use this bypass vulnerability to bypass stack guard. NOTE: Upstream comments indicate "this is being treated as a non-security bug and no real threat.
https://ubuntu.com/security/CVE-2019-1010022
https://sourceware.org/bugzilla/show_bug.cgi?id=22850#c3
https://sourceware.org/bugzilla/show_bug.cgi?id=22850
https://security-tracker.debian.org/tracker/CVE-2019-1010022