Linux Kernel up to 5.13.3 NFS net/sunrpc/xdr.c xdr_set_page_base denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability, which was classified as problematic, was found in Linux Kernel up to 5.13.3 (Operating System). This affects the function xdr_set_page_base of the file net/sunrpc/xdr.c of the component NFS Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was presented 08/09/2021 as 6d1c0f3d28f98ea2736128ed3e46821496dc3a8c. It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2021-38201. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 5.13.4 eliminates this vulnerability. The upgrade is hosted for download at Applying a patch is able to eliminate this problem. The bugfix is ready for download at The best possible mitigation is suggested to be upgrading to the latest version.







CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.13.4


08/08/2021 🔍
08/09/2021 +1 days 🔍
08/09/2021 +0 days 🔍
08/14/2021 +5 days 🔍



Advisory: 6d1c0f3d28f98ea2736128ed3e46821496dc3a8c
Status: Confirmed

CVE: CVE-2021-38201 (🔍)


Created: 08/09/2021 07:03 AM
Updated: 08/14/2021 09:44 AM
Changes: 08/09/2021 07:03 AM (45), 08/14/2021 09:40 AM (2), 08/14/2021 09:44 AM (18)
Complete: 🔍


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