CVE-2025-67269
Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-191
Subdesbordamiento de entero
Fecha de publicación:
02/01/2026
Última modificación:
15/07/2026
Descripción
*** Pendiente de traducción *** An integer underflow vulnerability exists in the `nextstate()` function in `gpsd/packet.c` of gpsd versions prior to commit `ffa1d6f40bca0b035fc7f5e563160ebb67199da7`. When parsing a NAVCOM packet, the payload length is calculated using `lexer->length = (size_t)c - 4` without checking if the input byte `c` is less than 4. This results in an unsigned integer underflow, setting `lexer->length` to a very large value (near `SIZE_MAX`). The parser then enters a loop attempting to consume this massive number of bytes, causing 100% CPU utilization and a Denial of Service (DoS) condition.
Impacto
Puntuación base 3.x
7.50
Gravedad 3.x
ALTA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:gpsd_project:gpsd:*:*:*:*:*:*:*:* | 3.27.1 (excluyendo) |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página
Referencias a soluciones, herramientas e información
- https://github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67269/README.md
- https://gitlab.com/gpsd/gpsd
- https://gitlab.com/gpsd/gpsd/-/commit/ffa1d6f40bca0b035fc7f5e563160ebb67199da7
- https://access.redhat.com/errata/RHSA-2026:0770
- https://access.redhat.com/errata/RHSA-2026:0771
- https://access.redhat.com/security/cve/CVE-2025-67269
- https://bugzilla.redhat.com/show_bug.cgi?id=2426810
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-67269.json


