What’s Vulnerable › Vulnerabilities

CVE-2023-42956

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-28 · updated 2026-06-17

Description

The issue was addressed with improved memory handling. This issue is fixed in Safari 17.2, iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2. Processing web content may lead to a denial-of-service.

Affected products

• Apple iPadOS: before 17.2 — fixed in 17.2
• Apple Iphone Os: before 17.2 — fixed in 17.2
• Apple macOS: from 14.0 before 14.2 — fixed in 14.2
• Apple Safari: before 17.2 — fixed in 17.2

How to fix

Upgrade to a fixed version: Apple iPadOS 17.2; Apple Iphone Os 17.2; Apple macOS 14.2; Apple Safari 17.2. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2024/03/26/1
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IXLXIOAH5S7J22LJTCIAVFVVJ4TESAX4/
• https://support.apple.com/en-us/HT214035
• https://support.apple.com/en-us/HT214036
• https://support.apple.com/en-us/HT214039
• https://support.apple.com/kb/HT214039
• http://www.openwall.com/lists/oss-security/2024/03/26/1
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IXLXIOAH5S7J22LJTCIAVFVVJ4TESAX4/
• https://support.apple.com/en-us/HT214035
• https://support.apple.com/en-us/HT214036
• https://support.apple.com/en-us/HT214039
• https://support.apple.com/kb/HT214039

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