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CVE-2019-19378

7.8 · 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.

Published Nov 29, 2019CWE-787EPSS 2.35%

Overview

CVE-2019-19378 is a high-severity vulnerability. It was published on November 29, 2019 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/bobfuzzer/CVE/tree/master/CVE-2019-19378Refsecurity.netapp.com/advisory/ntap-20200103-0001/GitHubgithub.com/bobfuzzer/CVE/tree/master/CVE-2019-19378Refsecurity.netapp.com/advisory/ntap-20200103-0001/

How CyberStrike helps

Frequently asked questions

What is CVE-2019-19378?

CVE-2019-19378 is a high-severity vulnerability. It was published on November 29, 2019 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2019-19378?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-19378?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-19378?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-19378 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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