2021-38199 | Linux Kernel connection-setup Order nfs4client.c 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, has been found in Linux Kernel up to 5.13.3 (Operating System). Affected by this issue is an unknown function of the file fs/nfs/nfs4client.c of the component connection-setup Order Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. Impacted is availability.
The weakness was disclosed 08/09/2021 as dd99e9f98fbf423ff6d365b37a98e8879170f17c. The advisory is available at github.com. This vulnerability is handled as CVE-2021-38199 since 08/08/2021. The exploitation is known to be easy. The attack may be launched remotely. The successful exploitation requires a simple authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/14/2021). This vulnerability is assigned to T1499 by the MITRE ATT&CK project.
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.
VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6
NVD Base Score: 🔒
Status: Not defined
0-Day Time: 🔒
Created: 08/09/2021 07:02
Updated: 08/14/2021 09:36
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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