{"id":67648,"date":"2025-08-30T05:00:59","date_gmt":"2025-08-30T05:00:59","guid":{"rendered":""},"modified":"2025-09-16T11:36:44","modified_gmt":"2025-09-16T17:36:44","slug":"cve-2025-52581-integer-overflow-vulnerability-in-the-biosig-project-libbiosig-leading-to-arbitrary-code-execution","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-52581-integer-overflow-vulnerability-in-the-biosig-project-libbiosig-leading-to-arbitrary-code-execution\/","title":{"rendered":"CVE-2025-52581: Integer Overflow Vulnerability in The Biosig Project libbiosig Leading to Arbitrary Code Execution<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The Biosig Project libbiosig, a popular library used for biomedical signal processing and file conversion, has been revealed to have a critical vulnerability that could potentially lead to system compromise or data leakage. The vulnerability, identified as CVE-2025-52581, exists in the GDF parsing functionality of libbiosig 3.9.0 and Master Branch (35a819fa). This vulnerability is a serious threat to any system<\/a> or application that relies on libbiosig for processing bio-signal data. If exploited, an attacker could execute arbitrary code, potentially compromising the entire system<\/a>.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-52581
\nSeverity: Critical, CVSS Score – 9.8
\nAttack Vector: File
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

The Biosig Project libbiosig<\/a> | 3.9.0 and Master Branch (35a819fa)<\/p>\n

How the Exploit Works<\/strong><\/p>\n

This vulnerability exists due to an integer overflow<\/a> in the GDF parsing functionality of libbiosig. An attacker can exploit this issue by crafting a malicious<\/a> GDF file that causes the overflow when processed. Once the overflow occurs, it can corrupt the memory, leading to arbitrary code<\/a> execution. This essentially means the attacker can run any code they want on the affected system, potentially gaining full control<\/a> over it.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

The following pseudocode illustrates how an attacker might craft a malicious GDF file to exploit the vulnerability<\/a>:<\/p>\n

# Pseudocode to create a malicious GDF file\n# Open a new GDF file\nfile = open('malicious.gdf', 'wb')\n# Write a specially crafted header to cause integer overflow\nfile.write(b'\\x00' * 1000000000)\n# Write arbitrary code that will be executed due to the overflow\nfile.write(b'\\x90' * 100 + b'\\xCC')\nfile.close()<\/code><\/pre>\n
This code creates a GDF file with a header that’s large enough to cause an integer overflow<\/a> when parsed by the vulnerable libbiosig library. The arbitrary code<\/a> (represented by ‘x90’ * 100 + ‘xCC’) would then be executed.
\nRemember, this is a simplified conceptual example. In a real scenario, the arbitrary code<\/a> would be carefully crafted to perform specific actions like creating a backdoor or exfiltrating data.<\/p>\n
Mitigation<\/strong><\/p>\n
The best way to mitigate this vulnerability is to apply the vendor patch as soon as it is available. Until then, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help to detect and block attempts to exploit this vulnerability<\/a>. It’s also recommended to validate and sanitize all GDF files before processing them, to prevent potential attacks.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The Biosig Project libbiosig, a popular library used for biomedical signal processing and file conversion, has been revealed to have a critical vulnerability that could potentially lead to system compromise or data leakage. The vulnerability, identified as CVE-2025-52581, exists in the GDF parsing functionality of libbiosig 3.9.0 and Master Branch (35a819fa). This vulnerability is […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-67648","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t