CVE-2021-28375
HighAn issue was discovered in the Linux kernel through 5.11.6. fastrpc_internal_invoke in drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka CID-20c40794eb85. This is a related issue to CVE-2019-2308.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-862CVE-2021-28375 is classified as CWE-862
See CWE-862 on MITRE CWE for full details on this weakness type.
References
The following references provide additional information about CVE-2021-28375 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Third Party Advisory
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PatchKernel patch commithttps://git.kernel.org/linus/20c40794eb85ea29852d7bc37c55713802a543d6
Frequently asked questions
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What is CVE-2021-28375?
CVE-2021-28375 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2021-28375 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2021-28375?
CVE-2021-28375 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2021-28375?
No patch is currently available for CVE-2021-28375. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2021-28375 actively exploited?
No — CVE-2021-28375 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.