Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.5.3 |
| Canonical | Ubuntu Linux | 14.04 |
| Opensuse | Leap | 15.1 |
| Netapp | Active Iq Unified Manager | - |
| Netapp | Cloud Backup | - |
| Netapp | Data Availability Services | - |
| Netapp | Hci Management Node | - |
| Netapp | Solidfire | - |
| Netapp | Steelstore Cloud Integrated Storage | - |
| Netapp | H410C Firmware | - |
| Netapp | H410C | - |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing ListThird Party Advisory
- https://patchwork.ozlabs.org/patch/1236118/PatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20200313-0003/Third Party Advisory
- https://usn.ubuntu.com/4318-1/Third Party Advisory
- https://usn.ubuntu.com/4324-1/Third Party Advisory
- https://usn.ubuntu.com/4342-1/Third Party Advisory
- https://usn.ubuntu.com/4344-1/Third Party Advisory
- https://usn.ubuntu.com/4419-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing ListThird Party Advisory
- https://patchwork.ozlabs.org/patch/1236118/PatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20200313-0003/Third Party Advisory
- https://usn.ubuntu.com/4318-1/Third Party Advisory
- https://usn.ubuntu.com/4324-1/Third Party Advisory
- https://usn.ubuntu.com/4342-1/Third Party Advisory
- https://usn.ubuntu.com/4344-1/Third Party Advisory
FAQ
What is CVE-2020-8992?
CVE-2020-8992 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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.
How severe is CVE-2020-8992?
CVE-2020-8992 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-2020-8992?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux, Opensuse Leap, Netapp Active Iq Unified Manager, Netapp Cloud Backup.