PT-2025-19987 · Libxmp+2 · Libxmp+2

Gareth C · Published 2025-05-05 · Updated 2025-05-12 · CVE-2025-47256

Positive Technologies (AI Summary)

CVSS v3.1

5.6

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Libxmp versions 4.6.2 and earlier

Description The issue is a stack-based buffer overflow in the depack pha function in loaders/prowizard/pha.c, which occurs when processing a malformed Pha format tracker module in a .mod file.

Recommendations For Libxmp versions 4.6.2 and earlier, consider restricting the use of the depack pha function in loaders/prowizard/pha.c until a patch is available. Avoid using the pha.c loader with untrusted .mod files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

BDU:2025-11923

CVE-2025-47256

OPENSUSE-SU-2025:15081-1

Affected Products

Astra Linux

Debian

Libxmp

References · 23

• 🔥 https://github.com/GCatt-AS/CVE-2025-47256 · Exploit
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-1020SE47 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-47256 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0923SE17 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-11923 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-47256 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-47256 · Security Note
• https://ubuntu.com/security/CVE-2025-47256 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-47256 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-47256 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-47256 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0811SE18 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15081-1 · Vendor Advisory
• https://github.com/libxmp/libxmp/blob/ec22d1c7b93c8f681f8504a6c61c6f8a52458a10/src/loaders/prowizard/pha.c#L35 · Note