CVE-2020-24394

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.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.02%
Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254 issue tracking third party advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832 patch vendor advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8 release notes vendor advisory
https://usn.ubuntu.com/4465-1/ third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html third party advisory vendor advisory
https://usn.ubuntu.com/4483-1/ third party advisory vendor advisory
https://usn.ubuntu.com/4485-1/ third party advisory vendor advisory
https://www.oracle.com/security-alerts/cpuApr2021.html third party advisory patch
https://security.netapp.com/advisory/ntap-20200904-0003/ third party advisory
https://www.starwindsoftware.com/security/sw-20210325-0004/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-24394?
CVE-2020-24394 has been scored as a high severity vulnerability.
How to fix CVE-2020-24394?
To fix CVE-2020-24394, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-24394 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-24394 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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