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CVE Vulnerabilities

CVE-2019-15790

Execution with Unnecessary Privileges

Published: Apr 28, 2020 | Modified: Nov 03, 2025
CVSS 3.x
3.3
LOW
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2019-15790
CWEhttps://cwe.mitre.org/data/definitions/250.html

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.

Weakness

The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.

Affected Software

NameVendorStart VersionEnd Version
ApportApport_project- (including)- (including)
ApportUbuntubionic*
ApportUbuntudevel*
ApportUbuntudisco*
ApportUbuntueoan*
ApportUbuntuesm-infra-legacy/trusty*
ApportUbuntuesm-infra/bionic*
ApportUbuntuesm-infra/xenial*
ApportUbuntutrusty*
ApportUbuntutrusty/esm*
ApportUbuntuxenial*

Potential Mitigations

References

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