CVE-2019-19036
MEDIUMCVSS 5.5/10EPSS 1.84%
Last modified
CVE-2019-19036 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 1.84% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.3.12 |
References
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036Exploit, Third Party Advisory
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-19036?
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 a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.
How do I fix CVE-2019-19036?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2019-19036?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST