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CVE-2019-15790 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/172858/Ubuntu-Apport-Whoopsie-DoS-Integer-Overflow.html
https://bugs.launchpad.net/apport/+bug/1854237 Issue Tracking  Third Party Advisory 
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1839795 Exploit  Issue Tracking  Third Party Advisory 
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1850929 Exploit  Issue Tracking  Patch  Third Party Advisory 
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1851806 Exploit  Issue Tracking  Third Party Advisory 
https://usn.ubuntu.com/4171-1/ Third Party Advisory 
https://usn.ubuntu.com/4171-2/ Third Party Advisory 
https://usn.ubuntu.com/4171-3/ Third Party Advisory 
https://usn.ubuntu.com/4171-4/ Third Party Advisory 
https://usn.ubuntu.com/4171-5/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-269 Improper Privilege Management cwe source acceptance level NIST  
CWE-250 Execution with Unnecessary Privileges Canonical Ltd.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-15790
NVD Published Date:
04/27/2020
NVD Last Modified:
06/12/2023
Source:
Canonical Ltd.