CVE-2009-2416: apple iphone_os Use After Free

Vulnerability summary

CVE-2009-2416 is a medium (CVSS 6.5) Use After Free vulnerability in apple iphone_os. EPSS estimates a 1.96% chance of exploitation in the next 30 days, higher than 79.9% of scored vulnerabilities.

Timeline

1. 11-08-2009
   PublishedVulnerability first disclosed.
2. 21-01-2025
   Last modifiedVulnerability information updated.

Description

Multiple use-after-free vulnerabilities in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allow context-dependent attackers to cause a denial of service (application crash) via crafted (1) Notation or (2) Enumeration attribute types in an XML file, as demonstrated by the Codenomicon XML fuzzing framework.

• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.