CVE-2021-41772 Denial of service in n/a

What is CVE-2021-41772?

CVE-2021-41772 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 8 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Go before 1.16.10 and 1.17.x before 1.17.3 allows an archive/zip Reader.Open panic via a crafted ZIP archive containing an invalid name or an empty filename field.

Weakness: CWE-20

Which versions are affected by CVE-2021-41772?

2 open source packages ship an affected version, including golang and stdlib. It affects 3 products.

Products include Fedoraproject Fedora, Golang Go, Oracle Timesten In-Memory Database.

How do I fix CVE-2021-41772?

Upgrade golang to a fixed version for your release line: 1.16.10 or 1.17.3.

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-2021-41772 being exploited?

There is no known exploitation of CVE-2021-41772 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 AZL-6452, BIT-golang-2021-41772, GHSA-8rv2-6fw3-rxjg, GO-2021-0264, UBUNTU-CVE-2021-41772.