CVE Vulnerability

CVE-2020-35513

A flaw incorrect umask during file or directory modification in the Linux kernel NFS (network file system) functionality was found in the way user create and delete object using NFSv4.2 or newer if both simultaneously accessing the NFS by the other process that is not using new NFSv4.2. A user with access to the NFS could use this flaw to starve the resources causing denial of service.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

4.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://patchwork.kernel.org/project/linux-nfs/patch/20180403203916.GH20297@fieldses.org/ Mailing List Patch
https://bugzilla.redhat.com/show_bug.cgi?id=1911309 Issue Tracking Patch
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:4.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Information

Published : 2021-01-26 06:15

Updated : 2021-02-02 07:39

NVD link : CVE-2020-35513

Mitre link : CVE-2020-35513

Products Affected
No products.
CWE
CWE-271

Privilege Dropping / Lowering Errors