What is CVE-2018-18559?

CVE-2018-18559 is a High severity Linux kernel vulnerability with a CVSS score of 8.1 out of 10, classified as a Race Condition flaw (CWE-362). CVE-2018-18559 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-18559?

CVE-2018-18559 has a CVSS score of 8.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2018-18559?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-18559 patch availability.

Is CVE-2018-18559 actively exploited?

CVE-2018-18559 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-2018-18559

High

In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.

Package Linux Kernel

Published 2018-10-22

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

8.1

out of 10

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-362

CVE-2018-18559 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

9 total

Blogs
https://blogs.securiteam.com/index.php/archives/3731

Exploit Patch Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHBA-2019:0327

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2019:0163

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2019:0188

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2019:1170

Third Party Advisory

Showing 5 of 9 references View all on NVD

Details

CVE ID CVE-2018-18559

Severity High

CVSS score 8.1 / 10

CVSS version 3.1

Published 2018-10-22

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-18559?

CVE-2018-18559 is a High severity Linux kernel vulnerability with a CVSS score of 8.1 out of 10 , classified as a Race Condition flaw (CWE-362) . CVE-2018-18559 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-18559?

CVE-2018-18559 has a CVSS score of 8.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2018-18559?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-18559 patch availability.
Is CVE-2018-18559 actively exploited?

No. CVE-2018-18559 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.