CVE-2011-0626 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 via unspecified vectors, related to a "bounds checking" issue, a different vulnerability than CVE-2011-0623, CVE-2011-0624, and CVE-2011-0625.
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Analysis
by VulDB Data Team • 11/07/2021
This vulnerability affects Adobe Flash Player versions prior to specific patches across multiple operating systems including Windows, Mac OS X, Linux, and Solaris, as well as Android versions before designated updates. The flaw stems from improper bounds checking mechanisms within the Flash Player runtime environment, creating a critical security gap that adversaries can exploit to execute arbitrary code on affected systems. The vulnerability represents a memory safety issue that falls under the broader category of buffer overflows or memory corruption vulnerabilities, though distinct from other related vulnerabilities in the same CVE series.
The technical implementation of this vulnerability involves a bounds checking flaw that occurs during the processing of Flash content, particularly when handling multimedia elements or script execution within Flash applications. Attackers can craft malicious Flash content that exploits this bounds checking weakness to bypass security restrictions and gain unauthorized code execution privileges. This type of vulnerability typically allows attackers to manipulate memory layout or overwrite critical program structures, potentially leading to complete system compromise.
The operational impact of CVE-2011-0626 is severe as it enables remote code execution without user interaction, making it particularly dangerous for widespread exploitation. Systems running vulnerable Flash Player versions become susceptible to drive-by download attacks where simply visiting compromised websites can lead to system compromise. The vulnerability affects all supported operating systems, creating a broad attack surface that makes it attractive to threat actors seeking to exploit the largest possible number of targets.
Organizations should prioritize immediate patching of all affected Flash Player installations across their environments, as the vulnerability exists in multiple platform versions simultaneously. Security teams should implement network monitoring to detect exploitation attempts and consider temporary disabling of Flash content in web browsers until patches are deployed. The vulnerability aligns with ATT&CK technique T1059 for command and script interpreter execution, and may relate to CWE-125 for out-of-bounds read conditions. Organizations should also review their web content delivery practices and consider implementing content security policies to limit exposure to malicious Flash content.
Mitigation strategies should include comprehensive vulnerability assessment across all systems running Flash Player, deployment of security patches immediately upon availability, and implementation of network segmentation to limit potential lateral movement if exploitation occurs. Regular security updates and patch management processes should be strengthened to prevent similar vulnerabilities from remaining unaddressed for extended periods. The vulnerability demonstrates the importance of maintaining current security postures and highlights the risks associated with legacy software components that may not receive timely security updates.