CVE-2021-1857 Information disclosure in iCloud for Windows
Processing malicious web content may disclose sensitive user information due to a memory initialization issue in Apple operating systems and applications.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-1857?
CVE-2021-1857 is a medium-severity vulnerability in Apple Icloud, published on 8 Sep 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iTunes 12.11.3 for Windows, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iCloud for Windows 12.3, macOS Big Sur 11.3, watchOS 7.4, tvOS 14.5, iOS 14.5 and iPadOS 14.5. Processing maliciously crafted web content may disclose sensitive user information.
Weakness: CWE-665
Which versions are affected by CVE-2021-1857?
It affects 8 products.
Products include Apple Icloud, Apple Ipados, Apple Iphone Os, Apple Itunes, Apple Mac Os X, Apple Macos and 2 more.
How do I fix CVE-2021-1857?
No fix has been published for CVE-2021-1857 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-1857 being exploited?
There is no known exploitation of CVE-2021-1857 in the wild and no public exploit code.
Other vulnerabilities in Apple Icloud
Sources
Also known as GHSA-gr6c-576g-h3q2.