vulnerability

Debian: CVE-2018-12232: linux -- security update

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
2018-06-12
Added
2024-07-30
Modified
2024-11-27

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

debian-upgrade-linux
Title
NEW

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