Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.37, 5.5.x before 5.5.21, and 5.6.x before 5.6.5 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages improper handling of duplicate numerical keys within the serialized properties of an object. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-8142.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0231
Reference (s):
- APPLE:APPLE-SA-2015-09-30-3
- URL: http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
- BID:72539
- URL: http://www.securityfocus.com/bid/72539
- http://advisories.mageia.org/MGASA-2015-0040.html