An issue was discovered in the Linux kernel before 5.0.9. There is a use-after-free in atalk_proc_exit, related to net/appletalk/atalk_proc.c, net/appletalk/ddp.c, and net/appletalk/sysctl_net_atalk.c.
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.9
https://usn.ubuntu.com/4115-1/
https://usn.ubuntu.com/4118-1/
https://security.netapp.com/advisory/ntap-20190905-0002/
https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
https://support.f5.com/csp/article/K27112954
https://support.f5.com/csp/article/K27112954?utm_source=f5support&utm_medium=RSS
Source: MITRE
Published: 2019-08-21
Updated: 2023-01-19
Type: CWE-416
Base Score: 10
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 10
Severity: HIGH
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL