CVE-2020-24394

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 v3.0 7.1 HIGH
CVSS v2.0 3.6 LOW

7.1^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

3.6^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:N

Exploitability : 3.9 / Impact : 4.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
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
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html	Third Party Advisory
https://security.netapp.com/advisory/ntap-20200904-0003/	Third Party Advisory
https://usn.ubuntu.com/4483-1/
https://usn.ubuntu.com/4485-1/
https://www.oracle.com/security-alerts/cpuApr2021.html

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:opensuse:leap:15.1:::::::*

Information

Published : 2020-08-19 13:15

Updated : 2021-06-14 18:15

NVD link : CVE-2020-24394

Mitre link : CVE-2020-24394

JSON object : View

Products Affected

opensuse

leap

linux

linux_kernel

canonical

ubuntu_linux

CWE

CWE-732

Incorrect Permission Assignment for Critical Resource

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