CVE-2021-30734 — Out-of-bounds Write in Apple IOS AND Ipados

CWE-787 — Out-of-bounds WriteCWE-20 — Improper Input Validation13 documents9 sources
Severity
8.8HIGHNVD
EPSS
1.1%
top 22.12%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Apple IOS AND IpadosApple MacosApple Ipados+4 more
Timeline
PublishedSep 8
Latest updateMay 24

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. Processing maliciously crafted web content may lead to arbitrary code execution.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages8 packages

▶NVDapple/tvos< 14.6
▶CVEListV5apple/macosunspecified — 11.4+3
▶NVDapple/macos11.0.1 — 11.4
▶NVDapple/ipados< 14.6
▶NVDapple/safari< 14.1.1

🔴Vulnerability Details

3
GHSA
GHSA-6h5w-63g9-w5m9: Multiple memory corruption issues were addressed with improved memory handling↗2022-05-24
▶
CVEList
CVE-2021-30734: Multiple memory corruption issues were addressed with improved memory handling↗2021-09-08
▶
OSV
CVE-2021-30734: Multiple memory corruption issues were addressed with improved memory handling↗2021-09-08
▶

📋Vendor Advisories

7
Ubuntu
WebKitGTK vulnerabilities↗2021-07-28
▶
Red Hat
webkitgtk: Memory corruptions leading to arbitrary code execution↗2021-07-28
▶
Apple
CVE-2021-30734: watchOS 7.5↗2021-05-24
▶
Apple
CVE-2021-30734: tvOS 14.6↗2021-05-24
▶
Apple
CVE-2021-30734: Safari 14.1.1↗2021-05-24
▶

🕵️Threat Intelligence

2
Qualys
Prevent Pegasus Spyware Attacks with VMDR | Qualys↗2021-07-23
▶
Qualys
Protect your Devices from Pegasus Spyware using VMDR for Mobile Devices’ Proactive Approach↗2021-07-23
▶
CVE-2021-30734 — Out-of-bounds Write in Apple | cvebase