Apple tvOS up to 16.2 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Apple tvOS up to 16.2. This impacts an unknown function of the component WebKit. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2023-23518. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Apple tvOS up to 16.2 (Digital Media Player) and classified as critical. This vulnerability affects an unknown part of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.6.3, macOS Ventura 13.2, watchOS 9.3, macOS Big Sur 11.7.3, Safari 16.3, tvOS 16.3, iOS 16.3 and iPadOS 16.3. Processing maliciously crafted web content may lead to arbitrary code execution.

The weakness was disclosed 01/24/2023 by YeongHyeon Choi as HT213601 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2023-23518. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

Processing maliciously crafted web content may lead to arbitrary code execution

The vulnerability scanner Nessus provides a plugin with the ID 212174 (Apple Safari 16.3 Multiple Vulnerabilities (120946)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 16.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

The issue was addressed with improved memory handling.

The vulnerability is also documented in the databases at Tenable (212174), EUVD (EUVD-2023-27618) and CERT Bund (WID-SEC-2023-1185). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Gentoo Linux
  • SUSE openSUSE
  • Red Hat OpenShift
  • RESF Rocky Linux

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 212174
Nessus Name: Apple Safari 16.3 Multiple Vulnerabilities (120946)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: tvOS 16.3

Timelineinfo

01/12/2023 🔍
01/24/2023 +12 days 🔍
01/24/2023 +0 days 🔍
01/28/2023 +4 days 🔍
11/30/2025 +1037 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213601
Researcher: YeongHyeon Choi
Status: Confirmed

CVE: CVE-2023-23518 (🔍)
GCVE (CVE): GCVE-0-2023-23518
GCVE (VulDB): GCVE-100-219712
EUVD: 🔍
CERT Bund: WID-SEC-2023-1185 - Red Hat Enterprise Linux: Mehrere Schwachstellen

Entryinfo

Created: 01/28/2023 18:38
Updated: 11/30/2025 03:43
Changes: 01/28/2023 18:38 (11), 01/28/2023 18:39 (8), 01/28/2023 18:42 (27), 02/25/2023 08:34 (1), 12/09/2024 18:44 (17), 03/12/2025 03:12 (12), 04/28/2025 01:51 (3), 10/12/2025 01:16 (1), 11/30/2025 03:43 (7)
Complete: 🔍
Cache ID: 216::103

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