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CVE-2021-28375

Date: March 14, 2021

An 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.

Language: C

Severity Score

Related Resources (14)

https://people.canonical.com/~ubuntu-security/cve/CVE-2021-28375
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XAUNYDTGE6MB4NWL2SIHPCODCLET3JZB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OMRQVOTASD3VZP6GE4JJHE27QU6FHTZ6/
https://lore.kernel.org/stable/YD03ew7+6v0XPh6l%40kroah.com/
https://lore.kernel.org/stable/YD03ew7+6v0XPh6l@kroah.com/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XAUNYDTGE6MB4NWL2SIHPCODCLET3JZB/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OMRQVOTASD3VZP6GE4JJHE27QU6FHTZ6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJPVQZPY3DHPV5I3IVNMSMO6D3PKZISX/
https://security.netapp.com/advisory/ntap-20210401-0003/
https://git.kernel.org/linus/20c40794eb85ea29852d7bc37c55713802a543d6
https://nvd.nist.gov/vuln/detail/CVE-2021-28375
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJPVQZPY3DHPV5I3IVNMSMO6D3PKZISX/
https://security-tracker.debian.org/tracker/CVE-2021-28375
https://www.mend.io/vulnerability-database/CVE-2021-28375

Severity Score

Weakness Type (CWE)

Improper Privilege Management

CWE-269

Missing Authorization

CWE-862

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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