high
8.8
CWE
787
Advisory Published
CVE Published
Updated

CVE-2021-30737

First published: Mon May 24 2021(Updated: )

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.

Credit: xerub xerub xerub xerub xerub xerub xerub product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iPadOS<14.6
Apple iPhone OS<12.5.4
Apple iPhone OS>=13.0<14.6
Apple Mac OS X>=10.14.0<=10.14.5
Apple Mac OS X>=10.15<=10.15.5
Apple Mac OS X=10.14.6
Apple Mac OS X=10.14.6-security_update_2019-001
Apple Mac OS X=10.14.6-security_update_2019-002
Apple Mac OS X=10.14.6-security_update_2019-004
Apple Mac OS X=10.14.6-security_update_2019-005
Apple Mac OS X=10.14.6-security_update_2019-006
Apple Mac OS X=10.14.6-security_update_2019-007
Apple Mac OS X=10.14.6-security_update_2020-001
Apple Mac OS X=10.14.6-security_update_2020-002
Apple Mac OS X=10.14.6-security_update_2020-003
Apple Mac OS X=10.14.6-security_update_2020-004
Apple Mac OS X=10.14.6-security_update_2020-005
Apple Mac OS X=10.14.6-security_update_2020-006
Apple Mac OS X=10.14.6-security_update_2020-007
Apple Mac OS X=10.14.6-security_update_2021-001
Apple Mac OS X=10.14.6-security_update_2021-002
Apple Mac OS X=10.14.6-security_update_2021-003
Apple Mac OS X=10.14.6-supplemental_update
Apple Mac OS X=10.14.6-supplemental_update_2
Apple Mac OS X=10.15.6
Apple Mac OS X=10.15.6-supplemental_update
Apple Mac OS X=10.15.7
Apple Mac OS X=10.15.7-security_update_2020
Apple Mac OS X=10.15.7-security_update_2020-001
Apple Mac OS X=10.15.7-security_update_2020-005
Apple Mac OS X=10.15.7-security_update_2020-007
Apple Mac OS X=10.15.7-security_update_2021-001
Apple Mac OS X=10.15.7-security_update_2021-002
Apple Mac OS X=10.15.7-supplemental_update
Apple macOS>=11.0.1<11.4
Apple tvOS<14.6
Apple watchOS<7.5
Apple Mojave
Apple iOS<12.5.4
12.5.4
Apple macOS Big Sur<11.4
11.4
Apple Catalina
Apple watchOS<7.5
7.5
Apple iOS<14.6
14.6
Apple iPadOS<14.6
14.6
Apple tvOS<14.6
14.6

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2021-30737?

    CVE-2021-30737 is a vulnerability that allows arbitrary code execution when processing a maliciously crafted certificate in certain Apple operating systems.

  • How can CVE-2021-30737 be exploited?

    CVE-2021-30737 can be exploited by an attacker who crafts a malicious certificate and tricks a user into opening it, leading to arbitrary code execution.

  • Which Apple operating systems are affected by CVE-2021-30737?

    CVE-2021-30737 affects Apple iOS, iPadOS, macOS, tvOS, watchOS, Catalina, and Mojave.

  • What is the severity of CVE-2021-30737?

    CVE-2021-30737 has a severity rating of critical.

  • How can I fix CVE-2021-30737?

    To fix CVE-2021-30737, update your affected Apple operating system to the specified versions in the Apple security advisories.

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