Vulnerability Description
btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcu_dereference(root->node) can be zero.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.3.12 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036ExploitThird Party Advisory
- https://security.netapp.com/advisory/ntap-20191205-0001/
- https://usn.ubuntu.com/4414-1/
- https://usn.ubuntu.com/4439-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036ExploitThird Party Advisory
- https://security.netapp.com/advisory/ntap-20191205-0001/
- https://usn.ubuntu.com/4414-1/
- https://usn.ubuntu.com/4439-1/
FAQ
What is CVE-2019-19036?
CVE-2019-19036 is a vulnerability with a CVSS score of 5.5 (MEDIUM). btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcu_dereference(root->node) can be zero.
How severe is CVE-2019-19036?
CVE-2019-19036 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-19036?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.