Privilege escalation in CUPS - CVE-2018-4180

Vulnerability identifier: #VU13881

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-4180

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to unspecified flaw. A local attacker with access to cupsctl can set an environment variable and gain elevated privileges.

CUPS
Debian Linux
Gentoo Linux
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Opensuse
Fedora
cups (Red Hat package)
cups
Data Computing Appliance (DCA)

Update to version 2.2.1.

CUPS - update to 2.2.1
cups (Red Hat package) - update to 1.6.3-43.el7
cups - addressed in versions 2.2.4-11.fc27, 2.2.6-16.fc28
Data Computing Appliance (DCA) - update to 4.3.0.0

• https://www.debian.org/security/2018/dsa-4243

• Debian update for cups
• OpenSUSE Linux update for cups
• OpenSUSE Linux update for cups
• Gentoo update for CUPS
• Red Hat Enterprise Linux 7 update for cups
• Multiple vulnerabilities in Dell EMC Data Computing Appliance (DCA)
• Fedora 28 update for cups
• Fedora 27 update for cups