Vulnerability Description
In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.7.8 |
| Canonical | Ubuntu Linux | 14.04 |
| Opensuse | Leap | 15.1 |
| Oracle | Sd-Wan Edge | 8.2 |
| Starwindsoftware | Starwind Virtual San | v8 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.htmlThird Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254Issue TrackingThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8Release NotesVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22PatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20200904-0003/Third Party Advisory
- https://usn.ubuntu.com/4465-1/Third Party Advisory
- https://usn.ubuntu.com/4483-1/Third Party Advisory
- https://usn.ubuntu.com/4485-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatchThird Party Advisory
- https://www.starwindsoftware.com/security/sw-20210325-0004/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.htmlThird Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254Issue TrackingThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8Release NotesVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22PatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20200904-0003/Third Party Advisory
FAQ
What is CVE-2020-24394?
CVE-2020-24394 is a vulnerability with a CVSS score of 7.1 (HIGH). In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs bec...
How severe is CVE-2020-24394?
CVE-2020-24394 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-24394?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux, Opensuse Leap, Oracle Sd-Wan Edge, Starwindsoftware Starwind Virtual San.