{"id":67917,"date":"2025-08-30T07:01:42","date_gmt":"2025-08-30T07:01:42","guid":{"rendered":""},"modified":"2025-10-21T04:13:14","modified_gmt":"2025-10-21T10:13:14","slug":"cve-2025-53518-an-integer-overflow-vulnerability-leading-to-arbitrary-code-execution-in-the-biosig-project-libbiosig","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-53518-an-integer-overflow-vulnerability-leading-to-arbitrary-code-execution-in-the-biosig-project-libbiosig\/","title":{"rendered":"CVE-2025-53518: An Integer Overflow Vulnerability Leading to Arbitrary Code Execution in The Biosig Project libbiosig<\/strong>"},"content":{"rendered":"

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

CVE-2025-53518 is a critical vulnerability found in The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). This vulnerability allows an attacker to execute arbitrary code, potentially resulting in a full system compromise or data leakage. It is particularly concerning due to its high CVSS severity<\/a> score of 9.8, indicating its severe impact and the ease of exploit. Given the widespread use of libbiosig in bioinformatics and related fields, anyone using the affected versions of the software could be a potential<\/a> victim. This necessitates an immediate response from both users and system administrators to apply mitigations and patches.<\/p>\n

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

CVE ID: CVE-2025-53518
\nSeverity: Critical (CVSS: 9.8)
\nAttack Vector: Malicious ABF file
\nPrivileges Required: None
\nUser Interaction: Required (User must open the malicious file<\/a>)
\nImpact: Arbitrary code execution, 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, Master Branch (35a819fa)<\/p>\n

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

The exploit works by taking advantage of an integer overflow vulnerability<\/a> in the ABF parsing functionality of the affected versions of libbiosig. An attacker crafts a malicious ABF file that, when processed by the application, triggers the integer overflow<\/a>. This overflow can lead to a buffer<\/a> overflow, where the excess data can overwrite other data structures in memory. An attacker can use this to inject and execute arbitrary code<\/a>.<\/p>\n

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

This is a conceptual example of how an attacker might craft a malicious ABF file to exploit the vulnerability<\/a>. The attacker crafts an ABF file with a specially designed header that causes an integer overflow when parsed, potentially leading to a buffer overflow<\/a>.<\/p>\n

\/\/ Malicious ABF file crafted to cause an integer overflow\nstruct ABFFileHeader {\nint fileVersion; \/\/ Set to a large integer to cause overflow\n\/\/ ...\n};<\/code><\/pre>\n
After crafting the malicious file, the attacker then sends it to the victim. If the victim opens the file using the affected version of libbiosig, the integer overflow vulnerability<\/a> is triggered, leading to arbitrary code execution.
\nPlease note that this is a conceptual example and the actual implementation of the exploit might be more complex and would require deep knowledge of the libbiosig’s code base and ABF file<\/a> format. The purpose of this example is to illustrate the nature of the vulnerability<\/a>, not to provide a practical guide for exploitation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2025-53518 is a critical vulnerability found in The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). This vulnerability allows an attacker to execute arbitrary code, potentially resulting in a full system compromise or data leakage. It is particularly concerning due to its high CVSS severity score of 9.8, indicating its severe impact and the […]<\/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":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-67917","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","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