| Name | CVE-2025-54490 |
| 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 9090 of biosig.c on the current master branch (35a819fa), when the Tag is 64: else if (tag==64) //0x40 { // preamble char tmp[256]; // [1] curPos += ifread(tmp,1,len,hdr); In this case, the overflowed buffer is the newly-declared `tmp` \[1\] instead of `buf`. While `tmp` is larger than `buf`, having a size of 256 bytes, a stack overflow can still occur in cases where `len` is encoded using multiple octets and is greater than 256. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1112133 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| biosig (PTS) | bullseye | 2.1.2-4 | vulnerable |
| bookworm | 2.5.0-1 | vulnerable | |
| forky, sid, trixie | 3.9.0-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| biosig | source | (unstable) | (unfixed) | 1112133 |
[trixie] - biosig <no-dsa> (Minor issue)
[bookworm] - biosig <no-dsa> (Minor issue)
[bullseye] - biosig <postponed> (Minor issue)
https://sourceforge.net/p/biosig/mailman/message/59224259/
https://sourceforge.net/p/biosig/code/ci/ba2f1c381b10f5ab50c94be3291b2560af0f7a96/