Описание
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.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 2.20.9-0ubuntu7.8 |
| devel | released | 2.20.11-0ubuntu10 |
| disco | released | 2.20.10-0ubuntu27.2 |
| eoan | released | 2.20.11-0ubuntu8.1 |
| esm-infra-legacy/trusty | released | 2.14.1-0ubuntu3.29+esm2 |
| esm-infra/bionic | released | 2.20.9-0ubuntu7.8 |
| esm-infra/xenial | released | 2.20.1-0ubuntu2.20 |
| precise/esm | DNE | |
| trusty | ignored | end of standard support |
| trusty/esm | released | 2.14.1-0ubuntu3.29+esm2 |
Показывать по
2.1 Low
CVSS2
2.8 Low
CVSS3
Связанные уязвимости
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.
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.
Уязвимость компонента /proc/$PID/ службы регистрации ошибок apport операционной системы Ubuntu, позволяющая нарушителю создать общедоступный отчет о программном сбое для привилегированного процесса
2.1 Low
CVSS2
2.8 Low
CVSS3