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.

CVSS v3 4.9 MEDIUM
CVSS v2.0 4.0 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

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

4.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1911309	Issue Tracking Patch Third Party Advisory
https://patchwork.kernel.org/project/linux-nfs/patch/20180403203916.GH20297%40fieldses.org/

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:4.2:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-01-26 18:15

Updated : 2023-11-07 03:21

NVD link : CVE-2020-35513

Mitre link : CVE-2020-35513

CVE.ORG link : CVE-2020-35513

JSON object : View

Products Affected

redhat

enterprise_linux

linux

linux_kernel

CWE

CWE-271

Privilege Dropping / Lowering Errors

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