CVE-2021-28375: High severity Linux Linux kernel vulnerability
An issue was discovered in the Linux kernel through 5.11.6. fastrpcinternalinvoke 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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.259-1Fixed in 6.1.176-1Fixed in 6.1.177-1Fixed in 6.12.94-1Fixed in 6.12.95-1Fixed in 7.1.3-1Fixed in 7.1.4-1
Event History
Frequently Asked Questions
What is the severity of CVE-2021-28375?
CVE-2021-28375 has a moderate severity rating due to its potential exploitation in the Linux kernel.
How do I fix CVE-2021-28375?
To fix CVE-2021-28375, update to a patched version of the Linux kernel, such as 5.10.223-1 or later.
What versions of the Linux kernel are affected by CVE-2021-28375?
CVE-2021-28375 affects Linux kernel versions prior to 5.11.7, as well as earlier versions below 5.4.106 and 5.10.24.
Which distributions are impacted by CVE-2021-28375?
CVE-2021-28375 impacts multiple distributions, including Google Android and Fedoraproject Fedora versions 32, 33, and 34.
Is CVE-2021-28375 related to any other vulnerabilities?
Yes, CVE-2021-28375 is related to CVE-2019-2308, highlighting similar issues in the Linux kernel RPC messaging.