CVE-2023-42917

Known Exploited

Description

A memory corruption vulnerability was addressed with improved locking. 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 lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.04%
KEV Since 
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple Safari
Affected: Apple macOS
Affected: Apple iOS and iPadOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT214033 vendor advisory
https://support.apple.com/en-us/HT214032 vendor advisory
https://support.apple.com/en-us/HT214031 vendor advisory
https://support.apple.com/kb/HT214033 vendor advisory
http://www.openwall.com/lists/oss-security/2023/12/05/1 third party advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P5LQS6VEI7VIZNC7QGQ62EOV45R5RJIR/ mailing list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AD2KIHHCUBQC2YYH3FJWAHI5BG3QETOH/ mailing list
https://support.apple.com/kb/HT214034 vendor advisory
https://www.debian.org/security/2023/dsa-5575 third party advisory mailing list
http://seclists.org/fulldisclosure/2023/Dec/3 third party advisory mailing list
http://seclists.org/fulldisclosure/2023/Dec/4 third party advisory mailing list
http://seclists.org/fulldisclosure/2023/Dec/5 third party advisory mailing list
http://seclists.org/fulldisclosure/2023/Dec/8 third party advisory mailing list
http://seclists.org/fulldisclosure/2023/Dec/13 third party advisory mailing list
http://seclists.org/fulldisclosure/2023/Dec/12 third party advisory mailing list
https://security.gentoo.org/glsa/202401-04 third party advisory
https://support.apple.com/kb/HT214062 vendor advisory
http://seclists.org/fulldisclosure/2024/Jan/35 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2023-42917?
CVE-2023-42917 has been scored as a high severity vulnerability.
How to fix CVE-2023-42917?
To fix CVE-2023-42917, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-42917 being actively exploited in the wild?
It is confirmed that CVE-2023-42917 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-42917?
CVE-2023-42917 affects Apple Safari, Apple macOS, Apple iOS and iPadOS.
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