CVEs / CVE-2023-42916
CVE-2023-42916: Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability
- Known exploited in the CISA KEV catalog since 4 Dec 2023
- medium 6.5 CVSS 3.1 (NVD)
- EPSS 17.8% chance of exploitation in the next 30 days, higher than 97% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Apple iOS, iPadOS, macOS, and Safari WebKit contain an out-of-bounds read vulnerability that may disclose sensitive information when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Apple Safari | from unspecified, before 17.1 | 17.1 |
| Apple macOS | from unspecified, before 14.1 | 14.1 |
| Apple iOS and iPadOS | from unspecified, before 17.1 | 17.1 |
| apple iphone_os | before 17.1.2 | 17.1.2 |
| apple ipados | before 17.1.2 | 17.1.2 |
| apple macos | from 14.0.0, before 14.1.2 | 14.1.2 |
| apple safari | before 17.1.2 | 17.1.2 |
Exploitation
| In CISA KEV since | 4 Dec 2023 |
|---|---|
| Due date for US federal agencies | 25 Dec 2023 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. |
Severity
| CVSS 3.1 | 6.5 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NScored by NVD |
|---|---|
| Weakness | CWE-125 |
References
- CVE-2023-42916 on NVD
- CVE-2023-42916 in the CISA KEV catalog
- https://support.apple.com/en-us/HT214031 (cited by CISA)
- https://support.apple.com/en-us/HT214032 (cited by CISA)
- https://support.apple.com/en-us/HT214033 (cited by CISA)
- CVE-2023-42916 on OSV
- http://seclists.org/fulldisclosure/2023/Dec/12 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Dec/13 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Dec/3 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Dec/4 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Dec/5 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Dec/8 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2024/Jan/35 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/12/05/1 Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]/message/AD2KIHHCUBQC2YYH3FJWAHI5BG3QETOH/ Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]/message/P5LQS6VEI7VIZNC7QGQ62EOV45R5RJIR/ Mailing List
- https://security.gentoo.org/glsa/202401-04 Third Party Advisory
- https://support.apple.com/en-us/HT214031 Vendor Advisory
- https://support.apple.com/en-us/HT214032 Vendor Advisory
- https://support.apple.com/en-us/HT214033 Vendor Advisory
- https://support.apple.com/kb/HT214033 Vendor Advisory
- https://support.apple.com/kb/HT214034 Vendor Advisory
- https://support.apple.com/kb/HT214062 Vendor Advisory
- https://www.debian.org/security/2023/dsa-5575 Mailing List
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42916 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.