vulnerability
Amazon Linux AMI: CVE-2018-12232: Security patch for kernel (ALAS-2018-1044)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:N/I:N/A:C) | Jun 12, 2018 | Jun 29, 2018 | Oct 14, 2022 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
Jun 12, 2018
Added
Jun 29, 2018
Modified
Oct 14, 2022
Description
In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and system crash.
Solution
amazon-linux-upgrade-kernel
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