CVE-2020-25673 Denial of service in Linux Kernel

What is CVE-2020-25673?

CVE-2020-25673 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 26 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak and eventually hanging-up the system.

Weakness: CWE-400

Which versions are affected by CVE-2020-25673?

It affects 13 products.

Products include Fedoraproject Fedora, Linux kernel, Netapp Active Iq Unified Manager, Netapp Cloud Backup, Netapp H300e Firmware, Netapp H300s Firmware and 7 more.

How do I fix CVE-2020-25673?

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-2020-25673 being exploited?

There is no known exploitation of CVE-2020-25673 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 DEBIAN-CVE-2020-25673, GHSA-h5g6-38c3-c3xv, UBUNTU-CVE-2020-25673.