CVE-2021-30737 — Out-of-bounds Write in Apple IOS AND Ipados

CWE-787 — Out-of-bounds Write11 documents6 sources
Severity
8.8HIGHNVD
EPSS
0.4%
top 39.26%
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

A memory corruption issue in the ASN.1 decoder was addressed by removing the vulnerable code. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, iOS 12.5.4, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. Processing a maliciously crafted certificate 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+4
▶NVDapple/macos11.0.1 — 11.4
▶NVDapple/ipados< 14.6
▶NVDapple/watchos< 7.5

🔴Vulnerability Details

4
GHSA
GHSA-f7gv-428c-w364: A memory corruption issue in the ASN↗2022-05-24
▶
Project0
CVE-2021-30737, @xerub&#39;s 2021 iOS ASN.1 Vulnerability - Project Zero↗2022-04-01
▶
CVEList
CVE-2021-30737: A memory corruption issue in the ASN↗2021-09-08
▶
VulnCheck
Apple ipados Out-of-bounds Write↗2021
▶

📋Vendor Advisories

6
Apple
CVE-2021-30737: iOS 12.5.4↗2021-06-14
▶
Apple
CVE-2021-30737: Security Update 2021-004 Mojave↗2021-05-24
▶
Apple
CVE-2021-30737: watchOS 7.5↗2021-05-24
▶
Apple
CVE-2021-30737: macOS Big Sur 11.4↗2021-05-24
▶
Apple
CVE-2021-30737: Security Update 2021-003 Catalina↗2021-05-24
▶
CVE-2021-30737 — Out-of-bounds Write in Apple | cvebase