Linux Kernel up to 5.13.3 NFS fs/nfsd/trace.h strlen out-of-bounds

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, was found in Linux Kernel up to 5.13.3. This affects the function strlen of the file fs/nfsd/trace.h of the component NFS Handler. Executing a manipulation can lead to out-of-bounds. The identification of this vulnerability is CVE-2021-38202. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.13.3 (Operating System) and classified as problematic. This vulnerability affects the function strlen of the file fs/nfsd/trace.h of the component NFS Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality.

The weakness was shared 08/09/2021 as 7b08cf62b1239a4322427d677ea9363f0ab677c6. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-38202. There are known technical details, but no exploit is available.

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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

Version

License

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: 7b08cf62b1239a4322427d677ea9363f0ab677c6
Status: Confirmed

CVE: CVE-2021-38202 (🔍)
GCVE (CVE): GCVE-0-2021-38202
GCVE (VulDB): GCVE-100-180364

Entryinfo

Created: 08/09/2021 07:03
Updated: 08/14/2021 09:49
Changes: 08/09/2021 07:03 (45), 08/14/2021 09:45 (2), 08/14/2021 09:49 (18)
Complete: 🔍
Cache ID: 216::103

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