{"id":68228,"date":"2025-08-30T19:05:59","date_gmt":"2025-08-30T19:05:59","guid":{"rendered":""},"modified":"2025-09-28T06:48:28","modified_gmt":"2025-09-28T12:48:28","slug":"cve-2025-54488-stack-based-buffer-overflow-vulnerability-in-the-biosig-project-libbiosig-3-9-0-and-master-branch","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-54488-stack-based-buffer-overflow-vulnerability-in-the-biosig-project-libbiosig-3-9-0-and-master-branch\/","title":{"rendered":"CVE-2025-54488: Stack-based Buffer Overflow Vulnerability in The Biosig Project libbiosig 3.9.0 and Master Branch<\/strong>"},"content":{"rendered":"

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

The Biosig Project libbiosig has encountered a severe vulnerability in its MFER parsing functionality. This stack-based buffer overflow flaw, known as CVE-2025-54488, is a critical cybersecurity issue that affects libbiosig 3.9.0 and the Master Branch (35a819fa). The vulnerability has the potential to affect a wide range of systems and applications that utilize the libbiosig<\/a> library for their operation, making it a significant concern for many organizations.
\nThe exploitation of this vulnerability can lead to arbitrary code execution, which can potentially lead to system<\/a> compromise or data leakage. This is why understanding and mitigating this threat is crucial, as it can have severe consequences for the security and integrity<\/a> of information systems.<\/p>\n

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

CVE ID: CVE-2025-54488
\nSeverity: Critical, CVSS score of 9.8
\nAttack Vector: Local
\nPrivileges Required: Low
\nUser Interaction: Required
\nImpact: Arbitrary code execution, leading to 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 a buffer overflow vulnerability<\/a> in the MFER parsing functionality of The Biosig Project libbiosig. When the parsing function encounters a specific MFER file, which has been maliciously crafted by an attacker, a buffer overflow<\/a> condition is triggered. This condition can then be leveraged to execute arbitrary code<\/a> on the affected system.<\/p>\n

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

Below is a conceptual example of how the vulnerability might be exploited. It assumes that an attacker can manipulate the MFER file<\/a> that is being parsed by the libbiosig library:<\/p>\n

#include \n#include \nchar malicious_code[] = \"malicious code here\";\nvoid trigger_vulnerability(char *input) {\nchar buf[8];\nstrcpy(buf, input);\n}\nint main() {\ntrigger_vulnerability(malicious_code);\nreturn 0;\n}<\/code><\/pre>\n
In this example, the malicious_code string is longer than the buffer can handle, triggering a stack-based buffer overflow<\/a> when the function `trigger_vulnerability` is called. This overflow can then be manipulated to execute arbitrary code<\/a>.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
To mitigate the risk associated with this vulnerability<\/a>, users are advised to apply the vendor patch as soon as it becomes available. Until the patch is applied, users can use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as temporary mitigation measures. Regular patching and updating of systems are crucial to ensuring the security of systems against such vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The Biosig Project libbiosig has encountered a severe vulnerability in its MFER parsing functionality. This stack-based buffer overflow flaw, known as CVE-2025-54488, is a critical cybersecurity issue that affects libbiosig 3.9.0 and the Master Branch (35a819fa). The vulnerability has the potential to affect a wide range of systems and applications that utilize the libbiosig […]<\/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-68228","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