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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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.13.3. The impacted element is the function xdr_set_page_base of the file net/sunrpc/xdr.c of the component NFS Handler. Performing a manipulation results in denial of service. This vulnerability was named CVE-2021-38201. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

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 github.com. 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 cdn.kernel.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.13.4
Patch: github.com

Timelineinfo

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

Sourcesinfo

Vendor: kernel.org

Advisory: 6d1c0f3d28f98ea2736128ed3e46821496dc3a8c
Status: Confirmed

CVE: CVE-2021-38201 (🔍)
GCVE (CVE): GCVE-0-2021-38201
GCVE (VulDB): GCVE-100-180363

Entryinfo

Created: 08/09/2021 07:03
Updated: 08/14/2021 09:44
Changes: 08/09/2021 07:03 (45), 08/14/2021 09:40 (2), 08/14/2021 09:44 (18)
Complete: 🔍
Cache ID: 216::103

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