DEBIAN-CVE-2025-54490

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Source
https://security-tracker.debian.org/tracker/CVE-2025-54490
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54490.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-54490
Upstream
Published
2025-08-25T14:15:35.420Z
Modified
2026-05-01T06:02:28.248530Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / biosig

Package

Name
biosig
Purl
pkg:deb/debian/biosig?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.1.2-4
2.3.3-1
2.4.0-1
2.4.0-2
2.5.0-1
2.5.2-1
2.5.2-2
2.6.0-1
2.6.1-1
3.*
3.9.0-1
3.9.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54490.json"

Debian:12 / biosig

Package

Name
biosig
Purl
pkg:deb/debian/biosig?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.0-1
2.5.2-1
2.5.2-2
2.6.0-1
2.6.1-1
3.*
3.9.0-1
3.9.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54490.json"

Debian:13 / biosig

Package

Name
biosig
Purl
pkg:deb/debian/biosig?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.9.0-1
3.9.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54490.json"

Debian:14 / biosig

Package

Name
biosig
Purl
pkg:deb/debian/biosig?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.9.5-1

Affected versions

3.*
3.9.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54490.json"