Resource exhaustion in Linux Kernel
CVE-2020-8992
ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel through 5.5.3 allows attackers to cause a denial of service (soft lockup) via a crafted journal size.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- patchwork.ozlabs.org/patch/1236118/ (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20200313-0003/ (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html (vendor-advisory, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4318-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4324-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4344-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4342-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4419-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8992?
- CVE-2020-8992 is a medium-severity vulnerability in Linux Kernel, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2020-02-14.
- How severe is CVE-2020-8992?
- Medium severity. CVSS v3 base score is 5.5 out of 10.