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.
References (10)
Core 10
Core References
Third Party Advisory 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/
Issue Tracking, Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254
Release Notes, Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8
Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200904-0003/
Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html
Third Party Advisory
https://www.starwindsoftware.com/security/sw-20210325-0004/
Scores
CVSS v3
7.1
EPSS
0.0005
EPSS Percentile
15.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Details
CWE
CWE-732
Status
published
Products (8)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
20.04
linux/linux_kernel
< 5.7.8
opensuse/leap
15.1
oracle/sd-wan_edge
8.2
starwindsoftware/starwind_virtual_san
v8 build12533 (6 CPE variants)
Published
Aug 19, 2020
Tracked Since
Feb 18, 2026