CVE - CVE-2018-12232

CVE-ID
CVE-2018-12232	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BID:104453 URL:http://www.securityfocus.com/bid/104453 MISC:http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14 MISC:https://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14 MISC:https://lkml.org/lkml/2018/6/5/14 MISC:https://patchwork.ozlabs.org/patch/926519/ REDHAT:RHSA-2018:2948 URL:https://access.redhat.com/errata/RHSA-2018:2948 UBUNTU:USN-3752-1 URL:https://usn.ubuntu.com/3752-1/ UBUNTU:USN-3752-2 URL:https://usn.ubuntu.com/3752-2/ UBUNTU:USN-3752-3 URL:https://usn.ubuntu.com/3752-3/
Assigning CNA
MITRE Corporation
Date Record Created
20180612	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20180612)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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