CVE-2020-24394 Information

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 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832 https://security.netapp.com/advisory/ntap-20200904-0003/ https://usn.ubuntu.com/4465-1/ https://usn.ubuntu.com/4483-1/ https://usn.ubuntu.com/4485-1/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.1