7.5Alta

CVE-2026-124747Busybox: heap buffer overflow in wget ftp resume when the resume offset exceeds the reported file size

Red Hat Red Hat Enterprise Linux 6; Red Hat Red Hat Hardened Images Publicada: (hace 4 días)

Descripción

A flaw was found in BusyBox. When resuming a download over File Transfer Protocol (FTP), the wget utility fails to verify that the resume offset does not exceed the file size reported by the server, resulting in an integer calculation error. A malicious FTP server or an on-path network attacker can exploit this issue by returning crafted file size metadata, triggering a heap-based buffer overflow with attacker-controlled data. Successful exploitation may allow an attacker to execute arbitrary code or crash the application, resulting in a denial of service (DoS).

Debilidad (CWE): CWE-787

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

FabricanteProductoVersiones
Red Hat Red Hat Enterprise Linux 6 all versions
Red Hat Red Hat Hardened Images all versions

Referencias y parches