Buffer overflow in Apple Ipados
CVE-2021-1844
A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution.
Vulnerability class: Buffer Overflow
EPSS: 0.024 (82.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Apple Ipados
- Apple Iphone_os
- Apple Macos — versions unspecified
- Apple Safari
- Apple Tvos
- Apple Watchos
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 33
Weakness classification (CWE)
Public proof-of-concept exploits
References
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_FEDORA, vendor-advisory)
- product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
- product-security@apple.com (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
- product-security@apple.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2021-1844?
- CVE-2021-1844 is a high-severity vulnerability in Apple Ipados, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-04-02.
- How severe is CVE-2021-1844?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-1844 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.