What is CVE-2019-19378?

CVE-2019-19378 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Out-of-bounds Write flaw (CWE-787). CVE-2019-19378 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2019-19378?

CVE-2019-19378 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2019-19378?

No patch is currently available for CVE-2019-19378. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2019-19378 actively exploited?

CVE-2019-19378 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2019-19378

High

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image can lead to slab-out-of-bounds write access in index_rbio_pages in fs/btrfs/raid56.c.

Package Linux Kernel

Published 2019-11-29

Last modified 2026-05-28

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-787

CVE-2019-19378 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2019-19378 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

GitHub
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19378

Exploit Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20200103-0001/

Details

CVE ID CVE-2019-19378

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2019-11-29

Modified 2026-05-28

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2019-19378?

CVE-2019-19378 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . CVE-2019-19378 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2019-19378?

CVE-2019-19378 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2019-19378?

No patch is currently available for CVE-2019-19378. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2019-19378 actively exploited?

No — CVE-2019-19378 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. View CWE-787 on MITRE CWE →