What is CVE-2019-6974?

CVE-2019-6974 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-2019-6974 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2019-6974?

CVE-2019-6974 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-2019-6974?

No patch is currently available for CVE-2019-6974. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2019-6974 actively exploited?

CVE-2019-6974 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-2019-6974

High

In the Linux kernel before 4.20.8, kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandles reference counting because of a race condition, leading to a use-after-free.

Package Linux Kernel

Published 2019-02-15

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-2019-6974 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-2019-6974 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/107127

Broken Link Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHBA-2019:0959

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2019:0818

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2019:0833

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2019:2809

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2019:3967

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2020:0103

Third Party Advisory
Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.99

Mailing List Vendor Advisory
Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21

Mailing List Vendor Advisory
Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8

Mailing List Vendor Advisory
Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.156

Mailing List Vendor Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html

Mailing List Third Party Advisory
Support
https://support.f5.com/csp/article/K11186236

Third Party Advisory
Support
https://support.f5.com/csp/article/K11186236?utm_source=f5support&amp%3Butm_medium=RSS
Ubuntu Security
https://usn.ubuntu.com/3930-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3930-2/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3931-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3931-2/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3932-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3932-2/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3933-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3933-2/

Third Party Advisory
Exploit-DB
https://www.exploit-db.com/exploits/46388/

Exploit Third Party Advisory VDB Entry
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cfa39381173d5f969daf43582c95ad679189cbc9
Patch
Kernel patch commit
https://bugs.chromium.org/p/project-zero/issues/detail?id=1765
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9
Patch

Details

CVE ID CVE-2019-6974

Severity High

CVSS score 8.1 / 10

CVSS version 3.1

Published 2019-02-15

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2019-6974?

CVE-2019-6974 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-2019-6974 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2019-6974?

CVE-2019-6974 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-2019-6974?

No patch is currently available for CVE-2019-6974. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2019-6974 actively exploited?

No — CVE-2019-6974 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 →