CVE-2022-22620 Apple iOS, iPadOS, and macOS: memory-safety flaw
In plain words: The program mishandles the memory it uses to keep track of data. A specially made input can scramble that memory. Usually lets an attacker crash the program or run their own code with its permissions.
Confirmed exploited by CISA on · US federal patch deadline Feb 25, 2022
What to do
- Install Apple's security update for iOS, iPadOS, and macOS. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Let the browser auto-update and relaunch it when it asks — the fix is not active until you do.
- Keep extensions to a minimum and remove ones you do not recognise.
- Stop using Internet Explorer and any browser that no longer gets updates.
Who is affected
Could reach you. This one is aimed at devices or apps of the kind people own.
What's at risk: A malicious or hacked website can be enough. Browser bugs are often the first step in a longer attack on the whole computer or phone.
The details
- Official name
- Apple iOS, iPadOS, and macOS Webkit Use-After-Free Vulnerability
- Product
- Apple iOS, iPadOS, and macOS
- CISA description
- Apple iOS, iPadOS, and macOS WebKit contain a use-after-free 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.
- Type of flaw
- Memory-safety flaw (CWE-416)
- Confirmed exploited
- Feb 11, 2022
- US federal patch deadline
- Feb 25, 2022
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Answering about CVE-2022-22620 ·
Questions about CVE-2022-22620
Is CVE-2022-22620 being exploited?
Yes. CISA added CVE-2022-22620 to its Known Exploited Vulnerabilities catalog on Feb 11, 2022, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2022-22620?
Install Apple's security update for iOS, iPadOS, and macOS. If no update exists, follow the vendor's workaround or stop using the product until one ships. Let the browser auto-update and relaunch it when it asks — the fix is not active until you do.
Am I affected by CVE-2022-22620?
Only if you use Apple iOS, iPadOS, and macOS. This one is aimed at devices or apps of the kind people own.