CVE-2026-109828
Description
A flaw was found in libsndfile. A remote attacker could exploit this vulnerability by enticing a user or application to process a specially crafted WAV audio file, triggering the use of an uninitialized variable during subchunk parsing. This issue may allow an attacker to read uninitialized memory contents, resulting in unauthorized information disclosure.
Déclaration
This vulnerability is rated as having Moderate severity because successful exploitation requires user interaction to process an untrusted audio file, with the impact limited to information disclosure. In typical Red Hat environments, the affected library is utilized by multimedia applications and utilities to handle audio formats, meaning the issue cannot be triggered autonomously across the network without an application actively reading a specially crafted WAV container. Because the flaw involves reading uninitialized memory rather than arbitrary code execution or persistent system compromise, confidentiality is only partially affected.
Mesure d'atténuation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Détails du score du système commun d'évaluation des vulnérabilités (CVSS)
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
Les mesures et les scores CVSS suivants sont préliminaires et sujets à révision.
Répartition des scores CVSS v3
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Score de base | 4.3 | N/A | 4.3 |
| Vecteur d'attaque | Network | N/A | Network |
| Complexité de l'attaque | Low | N/A | Low |
| Privilèges requis | None | N/A | None |
| Interaction avec l'utilisateur | Required | N/A | Required |
| Champ d'application | Unchanged | N/A | Unchanged |
| Confidentialité | Low | N/A | Low |
| Impact sur l'intégrité | None | N/A | None |
| Impact sur la disponibilité | None | N/A | None |
Vecteur
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RC:C
Comprendre la Défaillance (CWE)
Confidentiality
Technical Impact: Read Memory; Read Application Data
When reusing a resource such as memory or a program variable, the original contents may not have been cleared before it is sent to an untrusted party.
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Instability
The uninitialized resource may contain values that cause program flow to change in ways that the programmer did not intend, possibly leading to a crash.
Other
Technical Impact: Unexpected State; Varies by Context
The consequences vary depending on the type of resource and how it is used within the product.
Questions fréquemment posées
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