CVE-2018-12232

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.
Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

21 Nov 2024, 03:44

Type Values Removed Values Added
References () http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14 - Patch, Third Party Advisory () http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14 - Patch, Third Party Advisory
References () http://www.securityfocus.com/bid/104453 - Third Party Advisory, VDB Entry () http://www.securityfocus.com/bid/104453 - Third Party Advisory, VDB Entry
References () https://access.redhat.com/errata/RHSA-2018:2948 - () https://access.redhat.com/errata/RHSA-2018:2948 -
References () https://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14 - Patch, Third Party Advisory () https://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14 - Patch, Third Party Advisory
References () https://lkml.org/lkml/2018/6/5/14 - Third Party Advisory () https://lkml.org/lkml/2018/6/5/14 - Third Party Advisory
References () https://patchwork.ozlabs.org/patch/926519/ - Patch, Third Party Advisory () https://patchwork.ozlabs.org/patch/926519/ - Patch, Third Party Advisory
References () https://usn.ubuntu.com/3752-1/ - () https://usn.ubuntu.com/3752-1/ -
References () https://usn.ubuntu.com/3752-2/ - () https://usn.ubuntu.com/3752-2/ -
References () https://usn.ubuntu.com/3752-3/ - () https://usn.ubuntu.com/3752-3/ -

Information

Published : 2018-06-12 12:29

Updated : 2024-11-21 03:44


NVD link : CVE-2018-12232

Mitre link : CVE-2018-12232

CVE.ORG link : CVE-2018-12232


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')