CVE-2019-8744 Memory corruption in iOS

What is CVE-2019-8744?

CVE-2019-8744 is a medium-severity memory corruption vulnerability in Apple Iphone Os, 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

A memory corruption issue existed in the handling of IPv6 packets. This issue was addressed with improved memory management. This issue is fixed in macOS Catalina 10.15, tvOS 13, macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, watchOS 6, iOS 13. A malicious application may be able to determine kernel memory layout.

Weakness: CWE-787

Which versions are affected by CVE-2019-8744?

It affects 4 products.

Products include Apple Iphone Os, Apple Mac Os X, Apple Tvos, Apple Watchos.

How do I fix CVE-2019-8744?

No fix has been published for CVE-2019-8744 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2019-8744 being exploited?

There is no known exploitation of CVE-2019-8744 in the wild and no public exploit code.

Other vulnerabilities in Apple Iphone Os

• CVE-2021-30666 Apple iOS WebKit Buffer Overflow Exploited High 8.8
• CVE-2021-30761 Apple iOS WebKit Memory Corruption Exploited High 8.8
• CVE-2021-30762 Apple iOS WebKit Use-After-Free Exploited High 8.8
• CVE-2016-4657 Apple iOS Webkit Memory Corruption Exploited High 8.8
• CVE-2019-7286 Apple Multiple Products Memory Corruption Exploited High 7.8

All Apple Iphone Os vulnerabilities

Sources

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

Also known as GHSA-mcp5-8xm2-27j2.