CVE-2023-42916

Apple Safari, Apple macOS, Apple iOS and iPadOS

Published 30 Nov 2023 · updated 17 Jun 2026 · Analyzed

6.5 Medium · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 4 Dec 2023, with a remediation deadline of 25 Dec 2023 for US federal agencies.

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may disclose sensitive information. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.

References

seclists.org/fulldisclosure/2023/Dec/12 · Mailing List, Third Party Advisory
seclists.org/fulldisclosure/2023/Dec/13 · Mailing List, Third Party Advisory
seclists.org/fulldisclosure/2023/Dec/3 · Mailing List, Third Party Advisory
seclists.org/fulldisclosure/2023/Dec/4 · Mailing List, Third Party Advisory
seclists.org/fulldisclosure/2023/Dec/5 · Mailing List, Third Party Advisory
seclists.org/fulldisclosure/2023/Dec/8 · Mailing List, Third Party Advisory
seclists.org/fulldisclosure/2024/Jan/35 · Mailing List, Third Party Advisory
www.openwall.com/lists/oss-security/2023/12/05/1 · Mailing List, Third Party Advisory
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AD2KIHHCUBQC2YYH3FJWAHI5BG3QETOH/ · Mailing List
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P5LQS6VEI7VIZNC7QGQ62EOV45R5RJIR/ · Mailing List
security.gentoo.org/glsa/202401-04 · Third Party Advisory
support.apple.com/en-us/HT214031 · Vendor Advisory
support.apple.com/en-us/HT214032 · Vendor Advisory
support.apple.com/en-us/HT214033 · Vendor Advisory
support.apple.com/kb/HT214033 · Vendor Advisory
support.apple.com/kb/HT214034 · Vendor Advisory
support.apple.com/kb/HT214062 · Vendor Advisory
www.debian.org/security/2023/dsa-5575 · Mailing List
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42916 · US Government Resource