Description
A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.This vulnerability manifests on line 8824 of biosig.c on the current master branch (35a819fa), when the Tag is 11: else if (tag==11) //0x0B { // Fs if (len>6) fprintf(stderr,"Warning MFER tag11 incorrect length %i>6\n",len); double fval; curPos += ifread(buf,1,len,hdr);
Problem types
CWE-121: Stack-based Buffer Overflow
Product status
Master Branch (35a819fa)
Credits
Discovered by Mark Bereza and Lilith >_> of Cisco Talos.
References
talosintelligence.com/vulnerability_reports/TALOS-2025-2234
