Vulnerability Description
A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.8.9 |
| Debian | Debian Linux | 9.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Starwindsoftware | Starwind Virtual San | v8 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14314Issue TrackingThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=58PatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing ListThird Party Advisory
- https://lore.kernel.org/linux-ext4/f53e246b-647c-64bb-16ec-135383c70ad7%40redhat
- https://usn.ubuntu.com/4576-1/Third Party Advisory
- https://usn.ubuntu.com/4578-1/Third Party Advisory
- https://usn.ubuntu.com/4579-1/Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20210325-0003/Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14314Issue TrackingThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=58PatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2020-14314?
CVE-2020-14314 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to ...
How severe is CVE-2020-14314?
CVE-2020-14314 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-2020-14314?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Canonical Ubuntu Linux, Starwindsoftware Starwind Virtual San.