CVE-2020-9786 Denial of service in macOS

What is CVE-2020-9786?

CVE-2020-9786 is a low-severity denial of service vulnerability in Apple Mac Os X, published on 27 Oct 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

This issue was addressed with improved checks This issue is fixed in macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra. An application may be able to trigger a sysdiagnose.

Which versions are affected by CVE-2020-9786?

It affects 1 product.

Products include Apple Mac Os X.

How do I fix CVE-2020-9786?

No fix has been published for CVE-2020-9786 yet. Limit exposure of the affected software until one is available.

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-2020-9786 being exploited?

There is no known exploitation of CVE-2020-9786 in the wild and no public exploit code.

Other vulnerabilities in Apple Mac Os X

• CVE-2014-7169 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2014-6271 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2012-1823 PHP-CGI Query String Parameter Exploited Critical 9.8
• CVE-2021-30713 Apple macOS Unspecified Exploited High 7.8
• CVE-2019-8526 Apple macOS Use-After-Free Exploited High 7.8

All Apple Mac Os X vulnerabilities

Sources

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

Also known as GHSA-mxjg-g936-fxqj.