PT-2025-34644 · Libbiosig+1 · Libbiosig+1

Mark Bereza · Published 2025-01-01 · Updated 2025-08-25 · CVE-2025-54490

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: libbiosig versions 3.9.0 and Master Branch (35a819fa)

Description: A stack-based buffer overflow vulnerability exists in the MFER parsing functionality. A specially crafted MFER file can lead to arbitrary code execution. The vulnerability manifests on line 9090 of biosig.c when the Tag is 64, due to an overflow in the tmp buffer. The overflow can occur when len is greater than 256.

Recommendations: libbiosig version 3.9.0: At the moment, there is no information about a newer version that contains a fix for this vulnerability. libbiosig Master Branch (35a819fa): At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2025-54490

Affected Products

Debian

Libbiosig

References · 12

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-54490 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-54490 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-54490 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-54490 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-54490 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-54490 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-54490 · Security Note
• https://sourceforge.net/p/biosig/mailman/message/59224259 · Note
• https://t.me/CVEtracker/30850 · Telegram Post
• https://twitter.com/CVEnew/status/1959983150324400586 · Twitter Post
• https://twitter.com/CveFindCom/status/1959982018210529570 · Twitter Post