CVE-2018-6552

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Summary

CVECVE-2018-6552
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-05-31 22:29:00 UTC
Updated2019-10-03 00:03:00 UTC
DescriptionApport 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/<global pid>/ 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/<global pid>/ 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 And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apport Project Apport 2.14.1 All All All
Application Apport Project Apport 2.20.1 All All All
Application Apport Project Apport 2.20.7 All All All
Application Apport Project Apport 2.20.9 All All All
Application Apport Project Apport 2.14.1 All All All
Application Apport Project Apport 2.20.1 All All All
Application Apport Project Apport 2.20.7 All All All
Application Apport Project Apport 2.20.9 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 17.10 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 17.10 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All

References

ReferenceSourceLinkTags
USN-3664-1: Apport vulnerability | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com Vendor Advisory
USN-3664-2: Apport vulnerability | Ubuntu security notices UBUNTU usn.ubuntu.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Sander Bos

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