high
7.8
CWE
20 190
Advisory Published
Updated

CVE-2021-30952: Input Validation

First published: Tue Aug 24 2021(Updated: )

An integer overflow was addressed with improved input validation. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.

Credit: @18f @jq0904 DBAPP Security @18f @jq0904 DBAPP Security @18f @jq0904 DBAPP Security @18f @jq0904 DBAPP Security @18f @jq0904 DBAPP Security cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Apple Safari<15.2
Apple iPadOS<15.2
Apple iPhone OS<15.2
Apple macOS>=12.0<12.1
Apple tvOS<15.2
Apple watchOS<8.3
Fedoraproject Fedora=34
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Fedoraproject Fedora=35
debian/webkit2gtk
2.36.4-1~deb10u1
2.38.6-0+deb10u1
2.40.5-1~deb11u1
2.42.1-1~deb11u2
2.40.5-1~deb12u1
2.42.1-1~deb12u1
2.42.1-2
debian/wpewebkit
2.38.6-1~deb11u1
2.38.6-1
2.42.1-1
Apple watchOS<8.3
8.3
Apple tvOS<15.2
15.2
Apple Safari<15.2
15.2
Apple iOS<15.2
15.2
Apple iPadOS<15.2
15.2
Apple macOS Monterey<12.1
12.1

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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-2021-30952?

    CVE-2021-30952 is a vulnerability in WebKit where an integer overflow was addressed with improved input validation.

  • Which software versions are affected by CVE-2021-30952?

    CVE-2021-30952 affects macOS Monterey 12.1, Safari 15.2, iOS 15.2, iPadOS 15.2, watchOS 8.3, and tvOS 15.2.

  • How can I fix CVE-2021-30952?

    To fix CVE-2021-30952, update your software to the latest available version provided by Apple.

  • Where can I find more information about CVE-2021-30952?

    You can find more information about CVE-2021-30952 on the Apple security advisory page linked in the references.

  • What is the Common Weakness Enumeration (CWE) ID for CVE-2021-30952?

    CVE-2021-30952 is associated with CWE-20 and CWE-190.

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