Debian DLA-1426-1 : cups security update

Medium Nessus Plugin ID 111084

Synopsis

The remote Debian host is missing a security update.

Description

Several vulnerabilities were discovered in CUPS, the Common UNIX Printing System. These issues have been identified with the following CVE ids :

CVE-2018-4180

Dan Bastone of Gotham Digital Science discovered that a local attacker with access to cupsctl could escalate privileges by setting an environment variable.

CVE-2018-4181

Eric Rafaloff and John Dunlap of Gotham Digital Science discovered that a local attacker can perform limited reads of arbitrary files as root by manipulating cupsd.conf.

CVE-2018-6553

Dan Bastone of Gotham Digital Science discovered that an attacker can bypass the AppArmor cupsd sandbox by invoking the dnssd backend using an alternate name that has been hard linked to dnssd.

For Debian 8 'Jessie', these problems have been fixed in version 1.7.5-11+deb8u4.

We recommend that you upgrade your cups packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2018/07/msg00014.html

https://packages.debian.org/source/jessie/cups

Plugin Details

Severity: Medium

ID: 111084

File Name: debian_DLA-1426.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2018/07/16

Updated: 2019/01/17

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:N

CVSS v3.0

Base Score: 8.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:cups, p-cpe:/a:debian:debian_linux:cups-bsd, p-cpe:/a:debian:debian_linux:cups-client, p-cpe:/a:debian:debian_linux:cups-common, p-cpe:/a:debian:debian_linux:cups-core-drivers, p-cpe:/a:debian:debian_linux:cups-daemon, p-cpe:/a:debian:debian_linux:cups-dbg, p-cpe:/a:debian:debian_linux:cups-ppdc, p-cpe:/a:debian:debian_linux:cups-server-common, p-cpe:/a:debian:debian_linux:libcups2, p-cpe:/a:debian:debian_linux:libcups2-dev, p-cpe:/a:debian:debian_linux:libcupscgi1, p-cpe:/a:debian:debian_linux:libcupscgi1-dev, p-cpe:/a:debian:debian_linux:libcupsimage2, p-cpe:/a:debian:debian_linux:libcupsimage2-dev, p-cpe:/a:debian:debian_linux:libcupsmime1, p-cpe:/a:debian:debian_linux:libcupsmime1-dev, p-cpe:/a:debian:debian_linux:libcupsppdc1, p-cpe:/a:debian:debian_linux:libcupsppdc1-dev, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 2018/07/14

Reference Information

CVE: CVE-2018-4180, CVE-2018-4181, CVE-2018-6553