PT-2021-18874 · Apple · Ios+2

Published 2021-07-21 · Updated 2022-02-11 · CVE-2021-30791

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions iOS versions prior to 14.7 macOS Big Sur versions prior to 11.5

Description An out-of-bounds read issue was addressed with improved bounds checking. Processing a maliciously crafted file may disclose user information.

Recommendations For iOS versions prior to 14.7, update to iOS 14.7 or later to resolve the issue. For macOS Big Sur versions prior to 11.5, update to macOS Big Sur 11.5 or later to resolve the issue.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-30791

ZDI-21-946

Affected Products

Apple Macos

Ios

Macos Big Sur

References · 9

• https://support.apple.com/kb/HT212603 · Vendor Advisory
• https://support.apple.com/en-us/HT212601 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-946 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-30791 · Security Note
• https://support.apple.com/kb/HT212600 · Vendor Advisory
• https://support.apple.com/en-us/HT212602 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-30791 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30791 · Note
• https://support.apple.com/en-us/102849 · Note