What is CVE-2018-20836?

CVE-2018-20836 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-2018-20836 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-20836?

CVE-2018-20836 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-2018-20836?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-20836 patch availability.

Is CVE-2018-20836 actively exploited?

CVE-2018-20836 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-2018-20836

High

An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.

Package Linux Kernel

Published 2019-05-07

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-2018-20836 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

14 total

Kernel Git
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae

Patch Vendor Advisory
GitHub
https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae

Patch Vendor Advisory
Lists
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html

Mailing List Third Party Advisory
Lists
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html

Mailing List Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/108196

Third Party Advisory VDB Entry

Showing 5 of 14 references View all on NVD

Details

CVE ID CVE-2018-20836

Severity High

CVSS score 8.1 / 10

CVSS version 3.1

Published 2019-05-07

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-20836?

CVE-2018-20836 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-2018-20836 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-20836?

CVE-2018-20836 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-2018-20836?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-20836 patch availability.
Is CVE-2018-20836 actively exploited?

No. CVE-2018-20836 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.