CVE-2021-29646 Denial of service in n/a

What is CVE-2021-29646?

CVE-2021-29646 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 30 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 before 5.11.11. tipc_nl_retrieve_key in net/tipc/node.c does not properly validate certain data sizes, aka CID-0217ed2848e8.

Which versions are affected by CVE-2021-29646?

It affects 2 products.

Products include Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2021-29646?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-29646 being exploited?

There is no known exploitation of CVE-2021-29646 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-184622243, AZL-6549, DEBIAN-CVE-2021-29646, GHSA-5jv2-3rr2-pc65, PUB-A-184622243, UBUNTU-CVE-2021-29646.