Vulnerability Details CVE-2018-6553
The CUPS AppArmor profile incorrectly confined the dnssd backend due to use of hard links. A local attacker could possibly use this issue to escape confinement. This flaw affects versions prior to 2.2.7-1ubuntu2.1 in Ubuntu 18.04 LTS, prior to 2.2.4-7ubuntu3.1 in Ubuntu 17.10, prior to 2.1.3-4ubuntu0.5 in Ubuntu 16.04 LTS, and prior to 1.7.2-0ubuntu1.10 in Ubuntu 14.04 LTS.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 20.8%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 4.6
References
- https://lists.debian.org/debian-lts-announce/2018/07/msg00014.html
- https://security.gentoo.org/glsa/201908-08
- https://usn.ubuntu.com/usn/usn-3713-1
- https://www.debian.org/security/2018/dsa-4243
- https://lists.debian.org/debian-lts-announce/2018/07/msg00014.html
- https://security.gentoo.org/glsa/201908-08
- https://usn.ubuntu.com/usn/usn-3713-1
- https://www.debian.org/security/2018/dsa-4243
Products affected by CVE-2018-6553
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cpe:2.3:a:cups:cups:-
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cpe:2.3:o:canonical:ubuntu_linux:14.04
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cpe:2.3:o:canonical:ubuntu_linux:16.04
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cpe:2.3:o:canonical:ubuntu_linux:17.10
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cpe:2.3:o:canonical:ubuntu_linux:18.04
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cpe:2.3:o:debian:debian_linux:8.0
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cpe:2.3:o:debian:debian_linux:9.0