CVE-2017-13089

CVE-2017-13089 · GNU Wget: stack overflow in HTTP protocol handling

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

The http.c:skip_short_body() function is called in some circumstances, such as when processing redirects. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then tries to skip the chunk in pieces of 512 bytes by using the MIN() macro, but ends up passing the negative chunk length to connect.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument.

CVSS 8.8 · Alta · EPSS 79,9% · Corrección disponible

Publicación

2017-10-27T19:00:00.000Z

Actualización

2024-09-17T01:15:49.128Z

Pila tecnológica: system

Comprueba tu servidor →