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CVE-2019-15790

Estado: ModificadaBaja (3.3)—

Apport reads and writes information on a crashed process to /proc/pid with elevated privileges. Apport then determines which user the crashed process belongs to by reading /proc/pid through get_pid_info() in data/apport. An unprivileged user could exploit this to read information about a privileged running process by exploiting PID recycling. This information could then be used to obtain ASLR offsets for a process with an existing memory corruption vulnerability.

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The initial fix introduced regressions in the Python Apport library due to a missing argument in Report.add_proc_environ in apport/report.py. It also caused an autopkgtest failure when reading /proc/pid and with Python 2 compatibility by reading /proc maps. The initial and subsequent regression fixes are in 2.20.11-0ubuntu16, 2.20.11-0ubuntu8.6, 2.20.9-0ubuntu7.12, 2.20.1-0ubuntu2.22 and 2.14.1-0ubuntu3.29+esm3.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Apport Project — ApportCanonical — Ubuntu Linux

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2019-15790",
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      "lang": "en",
      "value": "Apport reads and writes information on a crashed process to /proc/pid with elevated privileges. Apport then determines which user the crashed process belongs to by reading /proc/pid through get_pid_info() in data/apport. An unprivileged user could exploit this to read information about a privileged running process by exploiting PID recycling. This information could then be used to obtain ASLR offsets for a process with an existing memory corruption vulnerability. The initial fix introduced regressions in the Python Apport library due to a missing argument in Report.add_proc_environ in apport/report.py. It also caused an autopkgtest failure when reading /proc/pid and with Python 2 compatibility by reading /proc maps. The initial and subsequent regression fixes are in 2.20.11-0ubuntu16, 2.20.11-0ubuntu8.6, 2.20.9-0ubuntu7.12, 2.20.1-0ubuntu2.22 and 2.14.1-0ubuntu3.29+esm3."
    },
    {
      "lang": "es",
      "value": "Apport lee y escribe información sobre un proceso bloqueado en /proc/pid con privilegios elevados. Apport determina a qué usuario pertenece el proceso bloqueado leyendo /proc/pid por medio de la función get_pid_info() en el archivo data/apport. Un usuario no privilegiado podría aprovechar esto para leer información sobre un proceso de ejecución privilegiado al explotar el reciclaje PID. Esta información podría ser usada para obtener compensaciones de ASLR para un proceso con una vulnerabilidad de corrupción de la memoria existente. La corrección inicial introdujo regresiones en la biblioteca Python de Apport debido a la falta de argumento en Report.add_proc_environ en apport/report.py. También causó un fallo de autopkgtest cuando se lee /proc/pid y con la compatibilidad con Python 2 por medio de la lectura de mapas /proc. Las correcciones de regresión iniciales y posteriores están en las versiones 2.20.11-0ubuntu16, 2.20.11-0ubuntu8.6, 2.20.9-0ubuntu7.12, 2.20.1-0ubuntu2.22 y 2.14.1-0ubuntu3.29+esm3."
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  "lastModified": "2026-06-17T02:21:04.753",
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