Improper Privilege Management Affecting apport package, versions <2.14.1-0ubuntu3.29+esm2


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.52% (41st percentile)

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  • Snyk IDSNYK-UBUNTU1404-APPORT-482524
  • published3 Nov 2019
  • disclosed28 Apr 2020

Introduced: 3 Nov 2019

CVE-2019-15790  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade Ubuntu:14.04 apport to version 2.14.1-0ubuntu3.29+esm2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apport package and not the apport package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1