CVE-2020-8252 Memory corruption in Node

What is CVE-2020-8252?

CVE-2020-8252 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 18 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.

Weakness: CWE-120

Which versions are affected by CVE-2020-8252?

2 open source packages ship an affected version, including node and node-min. It affects 3 products.

Products include Fedoraproject Fedora, Nodejs Node.js, Opensuse Leap.

How do I fix CVE-2020-8252?

Upgrade node to a fixed version for your release line: 10.22.1, 12.18.4 or 14.9.0.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-8252 being exploited?

There is no known exploitation of CVE-2020-8252 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 ALPINE-CVE-2020-8252, BIT-node-2020-8252, BIT-node-min-2020-8252, CLEANSTART-2026-MB55413, CLEANSTART-2026-OH78893, DEBIAN-CVE-2020-8252 and 4 more.