CVEvulnerability

CVE-2019-15790

3.3 LOW Published 2020-04-28 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-04-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
2.8 LOW — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
CVSS 3.1 ([email protected])
3.3 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-250, CWE-269

Description

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.

Affected configurations

• apport project apport • canonical ubuntu linux 14.04 • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04 • canonical ubuntu linux 19.04 • canonical ubuntu linux 19.10

Related

Weakness · CWE (2)

  • CWE-250 Execution with Unnecessary Privileges weakness
  • CWE-269 Improper Privilege Management weakness

References