NULL pointer dereference in Linux Kernel
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (78.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036 (Exploit, Third Party Advisory)
- security.netapp.com/advisory/ntap-20191205-0001/
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html (vendor-advisory)
- usn.ubuntu.com/4414-1/ (vendor-advisory)
- usn.ubuntu.com/4439-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2019-19036?
- CVE-2019-19036 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2019-11-21.
- How severe is CVE-2019-19036?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2019-19036 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.