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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2018-12232 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-12232
NVD Published Date:
06/12/2018
NVD Last Modified:
10/31/2018
Source:
MITRE