CVE-2021-30761: Apple iOS WebKit Memory Corruption Vulnerability

Published Jun 14, 2021
·
Updated

A memory corruption issue was addressed with improved state management.

Other sources

Apple iOS WebKit contains a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

CISA

Credit

an anonymous researcher

Affected Software

4 affected componentsFixes available
Apple iOS<12.5.4
12.5.4
Apple iOS
Apple iPhone OS<12.5.4
redhat/webkitgtk<2.26.0
2.26.0

Event History

Jul 28, 2021
Data Sourced
via Red Hat·01:45 PM
DescriptionSeverityAffected Software
Sep 8, 2021
CVE Published
via MITRE·01:45 PM
Data Sourced
via MITRE·01:45 PM
DescriptionWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
Nov 3, 2021
Known Exploited
via CISA·12:00 AM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2021-30761?

CVE-2021-30761 is a memory corruption vulnerability in Apple iOS WebKit.

2

How does CVE-2021-30761 affect Apple iOS?

CVE-2021-30761 allows for code execution on Apple iOS when processing malicious web content.

3

What is the severity of CVE-2021-30761?

The severity of CVE-2021-30761 is not specified in the information provided.

4

How can I fix CVE-2021-30761?

To fix CVE-2021-30761, update your Apple iOS to version 12.5.4.

5

Where can I find more information about CVE-2021-30761?

You can find more information about CVE-2021-30761 at the following link: [https://support.apple.com/en-us/HT212548](https://support.apple.com/en-us/HT212548)

Contact

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