CVE-2021-28375 Missing authorization in n/a

What is CVE-2021-28375?

CVE-2021-28375 is a high-severity missing authorization vulnerability in Fedoraproject Fedora, published on 15 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-862

Which versions are affected by CVE-2021-28375?

It affects 4 products.

Products include Fedoraproject Fedora, Linux kernel, Netapp Cloud Backup, Netapp Solidfire Baseboard Management Controller Firmware.

How do I fix CVE-2021-28375?

Apply the vendor's patch.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-28375 being exploited?

There is no known exploitation of CVE-2021-28375 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as A-183188047, ASB-A-183188047, AZL-6535, DEBIAN-CVE-2021-28375, GHSA-g79j-26m4-4gwc, UBUNTU-CVE-2021-28375.