What is CVE-2018-12232?

CVE-2018-12232 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.9 out of 10, classified as a Race Condition flaw (CWE-362). CVE-2018-12232 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-12232?

CVE-2018-12232 has a CVSS score of 5.9 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2018-12232?

No patch is currently available for CVE-2018-12232. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2018-12232 actively exploited?

CVE-2018-12232 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2018-12232

Medium

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.

Package Linux Kernel

Published 2018-06-12

Last modified 2024-11-21

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

5.9

out of 10

Medium

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-362

CVE-2018-12232 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2018-12232 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityfocus
http://www.securityfocus.com/bid/104453

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2018:2948
Lkml
https://lkml.org/lkml/2018/6/5/14

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3752-1/
Ubuntu Security
https://usn.ubuntu.com/3752-2/
Ubuntu Security
https://usn.ubuntu.com/3752-3/
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14
Patch
Kernel patch commit
https://patchwork.ozlabs.org/patch/926519/
Patch

Details

CVE ID CVE-2018-12232

Severity Medium

CVSS score 5.9 / 10

CVSS version 3.0

Published 2018-06-12

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-12232?

CVE-2018-12232 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.9 out of 10 , classified as a Race Condition flaw (CWE-362) . CVE-2018-12232 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-12232?

CVE-2018-12232 has a CVSS score of 5.9 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2018-12232?

No patch is currently available for CVE-2018-12232. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2018-12232 actively exploited?

No — CVE-2018-12232 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. View CWE-362 on MITRE CWE →