Buffer overflow in Apple iOS And Ipados
CVE-2021-30919
An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. Processing a maliciously crafted PDF may lead to arbitrary code execution.
Vulnerability class: Buffer Overflow
EPSS: 0.016 (72.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Apple Ios And Ipados — versions unspecified
- Apple Ipad_os
- Apple Ipados — versions 15.0
- Apple Iphone_os — versions 15.0
- Apple Macos — versions unspecified, 12.0
- Apple Mac_os_x — versions 10.15.7
- Apple Tvos
- Apple Watchos
Weakness classification (CWE)
Public proof-of-concept exploits
References
- product-security@apple.com (x_refsource_MISC)
- product-security@apple.com (x_refsource_MISC)
- product-security@apple.com (x_refsource_MISC)
- product-security@apple.com (x_refsource_MISC)
- product-security@apple.com (x_refsource_MISC)
- product-security@apple.com (x_refsource_MISC)
- product-security@apple.com (x_refsource_MISC)
- product-security@apple.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-30919?
- CVE-2021-30919 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-08-24.
- How severe is CVE-2021-30919?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-30919 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.