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Red Hat Security Advisory
Synopsis: Moderate: cups security and bug fix update
Advisory ID: RHSA-2020:1050-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1050
Issue date: 2020-03-31
CVE Names: CVE-2018-4180 CVE-2018-4181 CVE-2018-4700
=====================================================================
1. Summary:
An update for cups is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
3. Description:
The Common UNIX Printing System (CUPS) provides a portable printing layer
for Linux, UNIX, and similar operating systems.
Security Fix(es):
* cups: Local privilege escalation to root due to insecure environment
variable handling (CVE-2018-4180)
* cups: Manipulation of cupsd.conf by a local attacker resulting in limited
reads of arbitrary files as root (CVE-2018-4181)
* cups: Predictable session cookie breaks CSRF protection (CVE-2018-4700)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.8 Release Notes linked from the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing this update, the cupsd service will be restarted
automatically.
5. Bugs fixed (https://bugzilla.redhat.com/):
1607282 - CVE-2018-4180 cups: Local privilege escalation to root due to
insecure environment variable handling
1607291 - CVE-2018-4181 cups: Manipulation of cupsd.conf by a local attacker
resulting in limited reads of arbitrary files as root
1649347 - CVE-2018-4700 cups: Predictable session cookie breaks CSRF protection
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
cups-1.6.3-43.el7.src.rpm
noarch:
cups-filesystem-1.6.3-43.el7.noarch.rpm
x86_64:
cups-1.6.3-43.el7.x86_64.rpm
cups-client-1.6.3-43.el7.x86_64.rpm
cups-debuginfo-1.6.3-43.el7.i686.rpm
cups-debuginfo-1.6.3-43.el7.x86_64.rpm
cups-libs-1.6.3-43.el7.i686.rpm
cups-libs-1.6.3-43.el7.x86_64.rpm
cups-lpd-1.6.3-43.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
cups-debuginfo-1.6.3-43.el7.i686.rpm
cups-debuginfo-1.6.3-43.el7.x86_64.rpm
cups-devel-1.6.3-43.el7.i686.rpm
cups-devel-1.6.3-43.el7.x86_64.rpm
cups-ipptool-1.6.3-43.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
cups-1.6.3-43.el7.src.rpm
noarch:
cups-filesystem-1.6.3-43.el7.noarch.rpm
x86_64:
cups-1.6.3-43.el7.x86_64.rpm
cups-client-1.6.3-43.el7.x86_64.rpm
cups-debuginfo-1.6.3-43.el7.i686.rpm
cups-debuginfo-1.6.3-43.el7.x86_64.rpm
cups-libs-1.6.3-43.el7.i686.rpm
cups-libs-1.6.3-43.el7.x86_64.rpm
cups-lpd-1.6.3-43.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
cups-debuginfo-1.6.3-43.el7.i686.rpm
cups-debuginfo-1.6.3-43.el7.x86_64.rpm
cups-devel-1.6.3-43.el7.i686.rpm
cups-devel-1.6.3-43.el7.x86_64.rpm
cups-ipptool-1.6.3-43.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
cups-1.6.3-43.el7.src.rpm
noarch:
cups-filesystem-1.6.3-43.el7.noarch.rpm
ppc64:
cups-1.6.3-43.el7.ppc64.rpm
cups-client-1.6.3-43.el7.ppc64.rpm
cups-debuginfo-1.6.3-43.el7.ppc.rpm
cups-debuginfo-1.6.3-43.el7.ppc64.rpm
cups-devel-1.6.3-43.el7.ppc.rpm
cups-devel-1.6.3-43.el7.ppc64.rpm
cups-libs-1.6.3-43.el7.ppc.rpm
cups-libs-1.6.3-43.el7.ppc64.rpm
cups-lpd-1.6.3-43.el7.ppc64.rpm
ppc64le:
cups-1.6.3-43.el7.ppc64le.rpm
cups-client-1.6.3-43.el7.ppc64le.rpm
cups-debuginfo-1.6.3-43.el7.ppc64le.rpm
cups-devel-1.6.3-43.el7.ppc64le.rpm
cups-libs-1.6.3-43.el7.ppc64le.rpm
cups-lpd-1.6.3-43.el7.ppc64le.rpm
s390x:
cups-1.6.3-43.el7.s390x.rpm
cups-client-1.6.3-43.el7.s390x.rpm
cups-debuginfo-1.6.3-43.el7.s390.rpm
cups-debuginfo-1.6.3-43.el7.s390x.rpm
cups-devel-1.6.3-43.el7.s390.rpm
cups-devel-1.6.3-43.el7.s390x.rpm
cups-libs-1.6.3-43.el7.s390.rpm
cups-libs-1.6.3-43.el7.s390x.rpm
cups-lpd-1.6.3-43.el7.s390x.rpm
x86_64:
cups-1.6.3-43.el7.x86_64.rpm
cups-client-1.6.3-43.el7.x86_64.rpm
cups-debuginfo-1.6.3-43.el7.i686.rpm
cups-debuginfo-1.6.3-43.el7.x86_64.rpm
cups-devel-1.6.3-43.el7.i686.rpm
cups-devel-1.6.3-43.el7.x86_64.rpm
cups-libs-1.6.3-43.el7.i686.rpm
cups-libs-1.6.3-43.el7.x86_64.rpm
cups-lpd-1.6.3-43.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
cups-debuginfo-1.6.3-43.el7.ppc64.rpm
cups-ipptool-1.6.3-43.el7.ppc64.rpm
ppc64le:
cups-debuginfo-1.6.3-43.el7.ppc64le.rpm
cups-ipptool-1.6.3-43.el7.ppc64le.rpm
s390x:
cups-debuginfo-1.6.3-43.el7.s390x.rpm
cups-ipptool-1.6.3-43.el7.s390x.rpm
x86_64:
cups-debuginfo-1.6.3-43.el7.x86_64.rpm
cups-ipptool-1.6.3-43.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
cups-1.6.3-43.el7.src.rpm
noarch:
cups-filesystem-1.6.3-43.el7.noarch.rpm
x86_64:
cups-1.6.3-43.el7.x86_64.rpm
cups-client-1.6.3-43.el7.x86_64.rpm
cups-debuginfo-1.6.3-43.el7.i686.rpm
cups-debuginfo-1.6.3-43.el7.x86_64.rpm
cups-devel-1.6.3-43.el7.i686.rpm
cups-devel-1.6.3-43.el7.x86_64.rpm
cups-libs-1.6.3-43.el7.i686.rpm
cups-libs-1.6.3-43.el7.x86_64.rpm
cups-lpd-1.6.3-43.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
cups-debuginfo-1.6.3-43.el7.x86_64.rpm
cups-ipptool-1.6.3-43.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-4180
https://access.redhat.com/security/cve/CVE-2018-4181
https://access.redhat.com/security/cve/CVE-2018-4700
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.8_release_notes/index
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
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