CVE-2018-12232 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current 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.
Source:
MITRE
View Analysis Description
Analysis 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.
Source:
MITRE
Severity
CVSS 3.x Severity and Metrics:
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 Severity and Metrics:
Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C)
References to Advisories, Solutions, and Tools
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Weakness Enumeration
CWE-ID |
CWE Name |
Source |
CWE-362 |
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') |
NIST
|
Change History
5 change records found
- show changes
CVE Modified by MITRE -
10/31/2018 6:30:56 AM
Action |
Type |
Old Value |
New Value |
Added |
Reference |
|
https://access.redhat.com/errata/RHSA-2018:2948 [No Types Assigned] |
CVE Modified by MITRE -
8/29/2018 6:29:03 AM
Action |
Type |
Old Value |
New Value |
Added |
Reference |
|
https://usn.ubuntu.com/3752-3/ [No Types Assigned] |
CVE Modified by MITRE -
8/24/2018 6:29:05 AM
Action |
Type |
Old Value |
New Value |
Added |
Reference |
|
https://usn.ubuntu.com/3752-1/ [No Types Assigned] |
Added |
Reference |
|
https://usn.ubuntu.com/3752-2/ [No Types Assigned] |
Initial Analysis -
8/6/2018 12:46:15 PM
Action |
Type |
Old Value |
New Value |
Added |
CPE Configuration |
|
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.17.1 |
Added |
CVSS V2 |
|
(AV:N/AC:M/Au:N/C:N/I:N/A:C) |
Added |
CVSS V3 |
|
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
Added |
CWE |
|
CWE-362 |
Changed |
Reference Type |
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14 No Types Assigned |
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14 Patch, Third Party Advisory |
Changed |
Reference Type |
http://www.securityfocus.com/bid/104453 No Types Assigned |
http://www.securityfocus.com/bid/104453 Third Party Advisory, VDB Entry |
Changed |
Reference Type |
https://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14 No Types Assigned |
https://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14 Patch, Third Party Advisory |
Changed |
Reference Type |
https://lkml.org/lkml/2018/6/5/14 No Types Assigned |
https://lkml.org/lkml/2018/6/5/14 Third Party Advisory |
Changed |
Reference Type |
https://patchwork.ozlabs.org/patch/926519/ No Types Assigned |
https://patchwork.ozlabs.org/patch/926519/ Patch, Third Party Advisory |
CVE Modified by MITRE -
6/14/2018 9:29:01 PM
Action |
Type |
Old Value |
New Value |
Added |
Reference |
|
http://www.securityfocus.com/bid/104453 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2018-12232
NVD Published Date:
06/12/2018
NVD Last Modified:
10/31/2018
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