{"id":86110,"date":"2025-12-23T16:43:03","date_gmt":"2025-12-23T16:43:03","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2023-42869-critical-memory-corruption-vulnerability-in-macos-ios-and-ipados","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-42869-critical-memory-corruption-vulnerability-in-macos-ios-and-ipados\/","title":{"rendered":"CVE-2023-42869: Critical Memory Corruption Vulnerability in macOS, iOS, and iPadOS<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The CVE-2023-42869 vulnerability is a critical software flaw that affects macOS Ventura 13.4, iOS 16.5, and iPadOS 16.5. This vulnerability is significant due to the widespread use of these Apple platforms. The flaw exists in libxml2, a software library used for parsing XML documents, and can lead to memory corruption issues. If exploited, this vulnerability could potentially compromise the system or lead to data leakage.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2023-42869
\nSeverity: High – CVSS 7.5
\nAttack Vector: Remote
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System Compromise, Data Leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

macOS | Ventura 13.4
\niOS | 16.5
\niPadOS | 16.5<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploitation of this vulnerability involves sending malicious XML data to an application that uses the libxml2 library. The library fails to properly validate the input, leading to memory corruption. This corruption can then be leveraged by the attacker to execute arbitrary code and potentially gain control of the system or access sensitive data.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here is a conceptual example of a malicious XML document that could be used to exploit this vulnerability:<\/p>\n

\n\n]>\n&loop;<\/exploit><\/code><\/pre>\n
In this example, the XML document refers to a local file (`\/dev\/random`), which can lead to a memory exhaustion condition that crashes the application or even the entire system. In a real-world attack, such a file could be replaced with a crafted payload to exploit the memory corruption vulnerability and execute arbitrary code.<\/p>\n
Mitigation<\/strong><\/p>\n
Users are advised to apply the patch provided by Apple for macOS Ventura 13.4, iOS 16.5, and iPadOS 16.5. In the absence of a patch, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as a temporary mitigation. These systems can be configured to block or alert on attempts to exploit this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The CVE-2023-42869 vulnerability is a critical software flaw that affects macOS Ventura 13.4, iOS 16.5, and iPadOS 16.5. This vulnerability is significant due to the widespread use of these Apple platforms. The flaw exists in libxml2, a software library used for parsing XML documents, and can lead to memory corruption issues. If exploited, this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86110","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t