Vulnerability in Cups
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Cups
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 8.0, 9.0
- Cups — versions unspecified
References
- usn.ubuntu.com/usn/usn-3713-1 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2018/dsa-4243 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/07/msg00014.html (mailing-list, Mailing List, Third Party Advisory, Issue Tracking)
- security.gentoo.org/glsa/201908-08 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-6553?
- CVE-2018-6553 is a high-severity vulnerability in Cups. CVSS score: 8.8/10. Published 2018-08-10.
- How severe is CVE-2018-6553?
- High severity. CVSS v3 base score is 8.8 out of 10.