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CVE-2018-6552

Description

Apport does not properly handle crashes originating from a PID namespace allowing local users to create certain files as root which an attacker could leverage to perform a denial of service via resource exhaustion, possibly gain root privileges, or escape from containers. The is_same_ns() function returns True when /proc// does not exist in order to indicate that the crash should be handled in the global namespace rather than inside of a container. However, the portion of the data/apport code that decides whether or not to forward a crash to a container does not always replace sys.argv[1] with the value stored in the host_pid variable when /proc// does not exist which results in the container pid being used in the global namespace. This flaw affects versions 2.20.8-0ubuntu4 through 2.20.9-0ubuntu7, 2.20.7-0ubuntu3.7, 2.20.7-0ubuntu3.8, 2.20.1-0ubuntu2.15 through 2.20.1-0ubuntu2.17, and 2.14.1-0ubuntu3.28.

Risk Information

Base Score
7.8
MODERATE
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.032

Associated Vulnerability

VulnerabilityOS Platform
automatically generate crash reports for debugging (USN-3157-1) apport-gtk_2.20.1-0ubuntu2.18_all.debLinux
automatically generate crash reports for debugging (USN-3157-1) apport-gtk_2.14.1-0ubuntu3.29_all.debLinux
automatically generate crash reports for debugging (USN-3157-1) apport-kde_2.20.1-0ubuntu2.18_all.debLinux
automatically generate crash reports for debugging (USN-3157-1) apport-kde_2.14.1-0ubuntu3.29_all.debLinux
automatically generate crash reports for debugging (USN-3354-1) python-apport_2.14.1-0ubuntu3.29_all.debLinux
automatically generate crash reports for debugging (USN-3354-1) python-apport_2.20.1-0ubuntu2.18_all.debLinux
automatically generate crash reports for debugging (USN-3354-1) python3-apport_2.14.1-0ubuntu3.29_all.debLinux
automatically generate crash reports for debugging (USN-3354-1) python3-apport_2.20.1-0ubuntu2.18_all.debLinux
automatically generate crash reports for debugging (USN-3664-1) apport_2.20.7-0ubuntu3.9_all.debLinux
automatically generate crash reports for debugging (USN-3664-1) apport_2.20.9-0ubuntu7.1_all.debLinux
automatically generate crash reports for debugging (USN-3664-1) apport_2.20.1-0ubuntu2.18_all.debLinux
automatically generate crash reports for debugging (USN-3664-2) apport_2.14.1-0ubuntu3.29_all.debLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234