CVE-2009-0450 in HDTV Player
Summary
by MITRE
Stack-based buffer overflow in BlazeVideo HDTV Player 3.5 and earlier allows remote attackers to execute arbitrary code via a long string in a playlist (aka .plf) file.
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Analysis
by VulDB Data Team • 05/15/2025
The vulnerability identified as CVE-2009-0450 represents a critical stack-based buffer overflow flaw within BlazeVideo HDTV Player version 3.5 and earlier implementations. This vulnerability specifically manifests when the affected media player processes playlist files with extension .plf, which are commonly used to organize and manage multimedia content sequences. The flaw stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before copying it into fixed-size memory buffers on the stack.
The technical exploitation of this vulnerability occurs through the manipulation of playlist files that contain excessively long string data structures. When the BlazeVideo HDTV Player attempts to parse these malformed playlist entries, the application fails to perform proper bounds checking on the input data. This allows an attacker to overflow the allocated stack buffer space, potentially overwriting adjacent memory locations including return addresses, function pointers, and other critical program state information. The stack-based nature of this vulnerability means that the overflow directly affects the program's execution flow by corrupting the stack frame of the calling function.
From an operational perspective, this vulnerability presents a significant risk to end-user systems as it enables remote code execution capabilities without requiring local system access. Attackers can craft malicious playlist files that, when opened by an unsuspecting user, will trigger the buffer overflow condition and allow arbitrary code execution with the privileges of the affected application. This represents a classic remote exploitation scenario where network-based attacks can be launched against vulnerable systems. The impact extends beyond simple code execution as the vulnerability can potentially be leveraged to install backdoors, modify system configurations, or escalate privileges to administrator-level access depending on the target environment.
The vulnerability aligns with CWE-121, which specifically addresses stack-based buffer overflow conditions, and demonstrates characteristics consistent with ATT&CK technique T1059.007 for command and scripting interpreter. The attack surface is particularly concerning given that playlist files are commonly shared through various channels including email attachments, file sharing networks, and web-based content distribution systems. Security professionals should note that this vulnerability was discovered during the early 2000s era when multimedia application security was less mature, making it a prime example of how legacy software can harbor critical flaws that persist for years without proper patching or replacement.
Mitigation strategies for this vulnerability should prioritize immediate patching or replacement of affected BlazeVideo HDTV Player installations with updated versions that include proper input validation and bounds checking mechanisms. System administrators should implement network-based restrictions to prevent the automatic execution of playlist files from untrusted sources, while also deploying application whitelisting solutions to control which applications can execute on target systems. Additionally, regular security assessments should be conducted to identify other legacy multimedia applications that may share similar vulnerabilities, as this type of buffer overflow flaw was prevalent in multimedia processing software of that era. The remediation process should also include user education about the risks of opening unknown playlist files and implementing security policies that restrict the handling of multimedia content from external sources.