CVE-2025-34451
Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-121
Desbordamiendo de búfer basado en pila (Stack)
Fecha de publicación:
18/12/2025
Última modificación:
19/12/2025
Descripción
*** Pendiente de traducción *** rofl0r/proxychains-ng versions up to and including 4.17 and prior to commit cc005b7 contain a stack-based buffer overflow vulnerability in the function proxy_from_string() located in src/libproxychains.c. When parsing crafted proxy configuration entries containing overly long username or password fields, the application may write beyond the bounds of fixed-size stack buffers, leading to memory corruption or crashes. This vulnerability may allow denial of service and, under certain conditions, could be leveraged for further exploitation depending on the execution environment and applied mitigations.
Impacto
Puntuación base 4.0
6.90
Gravedad 4.0
MEDIA
Referencias a soluciones, herramientas e información
- https://github.com/httpsgithu/proxychains-ng/commit/cc005b7
- https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-008-proxychains-ng-stack-buffer-overflow-proxy_from_string.md
- https://github.com/rofl0r/proxychains-ng/issues/606
- https://www.vulncheck.com/advisories/rofl0r-proxychains-ng-stack-based-buffer-overflow
- https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-008-proxychains-ng-stack-buffer-overflow-proxy_from_string.md