CVE-2011-0620 in Flash Player
Summary
by MITRE
Adobe Flash Player before 10.3.181.14 on Windows, Mac OS X, Linux, and Solaris and before 10.3.185.21 on Android allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2011-0619, CVE-2011-0621, and CVE-2011-0622.
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Analysis
by VulDB Data Team • 11/07/2021
Adobe Flash Player versions prior to 10.3.181.14 on Windows, Mac OS X, Linux, and Solaris systems and before 10.3.185.21 on Android devices contained a critical memory corruption vulnerability that enabled remote code execution and denial of service attacks. This vulnerability represents a classic heap-based buffer overflow condition that occurs when the Flash Player processes malformed multimedia content or embedded objects within web pages. The flaw exists in the player's handling of specific data structures and memory allocation patterns, creating opportunities for attackers to manipulate memory layout and execute arbitrary code with the privileges of the affected user. The vulnerability falls under CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write operations, making it particularly dangerous for exploitation. Attackers could craft malicious web content or files that, when opened by an unpatched Flash Player, would trigger memory corruption and potentially allow remote code execution. The attack vector typically involved visiting compromised websites or opening malicious documents that contained specially crafted Flash content designed to exploit the memory handling flaw. This vulnerability was distinct from other related issues such as CVE-2011-0619, CVE-2011-0621, and CVE-2011-0622, which addressed different aspects of Flash Player security. The impact of this vulnerability extended across multiple operating systems and platforms, making it a widespread concern for enterprise environments that relied heavily on Flash-based applications and content. Organizations running unpatched versions of Flash Player were at significant risk of compromise, as the vulnerability could be exploited through web browsers without requiring any user interaction beyond visiting a malicious website. The memory corruption aspect of this vulnerability also made it susceptible to denial of service attacks where attackers could crash the Flash Player process or system resources. According to ATT&CK framework, this vulnerability maps to T1059.007 for execution through Flash Player and T1203 for exploitation of memory corruption flaws. The remediation strategy involved immediate patching of Flash Player installations across all affected platforms, with administrators implementing additional security measures such as disabling Flash Player in web browsers, using sandboxing techniques, and monitoring for exploitation attempts. Organizations should have also deployed network intrusion detection systems to identify potential exploitation attempts and ensured that all endpoints were updated to patched versions of the software to prevent successful exploitation of this vulnerability.