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AUSCERT External Security Bulletin Redistribution
ESB-2018.3902
Important: ghostscript security and bug fix update
18 December 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: ghostscript
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-19409 CVE-2018-19134 CVE-2018-18284
CVE-2018-18073 CVE-2018-17961 CVE-2018-17183
CVE-2018-16802 CVE-2018-16541 CVE-2018-15911
Reference: ESB-2018.2970
ESB-2018.2753
ESB-2018.2684
Original Bulletin:
https://access.redhat.com/errata/RHSA-2018:3834
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=====================================================================
Red Hat Security Advisory
Synopsis: Important: ghostscript security and bug fix update
Advisory ID: RHSA-2018:3834-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3834
Issue date: 2018-12-17
CVE Names: CVE-2018-15911 CVE-2018-16541 CVE-2018-16802
CVE-2018-17183 CVE-2018-17961 CVE-2018-18073
CVE-2018-18284 CVE-2018-19134 CVE-2018-19409
=====================================================================
1. Summary:
An update for ghostscript is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Important. 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) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional
(v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server
(v. 7) - aarch64, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional
(v. 7) - aarch64, noarch, ppc64le, s390x
3. Description:
The Ghostscript suite contains utilities for rendering PostScript and PDF
documents. Ghostscript translates PostScript code to common bitmap formats
so that the code can be displayed or printed.
Security Fix(es):
* ghostscript: Incorrect free logic in pagedevice replacement (699664)
(CVE-2018-16541)
* ghostscript: Incorrect "restoration of privilege" checking when running
out of stack during exception handling (CVE-2018-16802)
* ghostscript: User-writable error exception table (CVE-2018-17183)
* ghostscript: Saved execution stacks can leak operator arrays (incomplete
fix for CVE-2018-17183) (CVE-2018-17961)
* ghostscript: Saved execution stacks can leak operator arrays
(CVE-2018-18073)
* ghostscript: 1Policy operator allows a sandbox protection bypass
(CVE-2018-18284)
* ghostscript: Type confusion in setpattern (700141) (CVE-2018-19134)
* ghostscript: Improperly implemented security check in zsetdevice function
in psi/zdevice.c (CVE-2018-19409)
* ghostscript: Uninitialized memory access in the aesdecode operator
(699665) (CVE-2018-15911)
For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.
Red Hat would like to thank Tavis Ormandy (Google Project Zero) for
reporting CVE-2018-16541.
Bug Fix(es):
* It has been found that ghostscript-9.07-31.el7_6.1 introduced regression
during the handling of shading objects, causing a "Dropping incorrect
smooth shading object" warning. With this update, the regression has been
fixed and the described problem no longer occurs. (BZ#1657822)
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
5. Bugs fixed (https://bugzilla.redhat.com/):
1625832 - CVE-2018-15911 ghostscript: Uninitialized memory access in the
aesdecode operator (699665)
1625846 - CVE-2018-16541 ghostscript: Incorrect free logic in pagedevice
replacement (699664)
1627959 - CVE-2018-16802 ghostscript: Incorrect "restoration of privilege"
checking when running out of stack during exception handling
1632471 - CVE-2018-17183 ghostscript: User-writable error exception table
1642578 - CVE-2018-17961 ghostscript: Saved execution stacks can leak operator
arrays (incomplete fix for CVE-2018-17183)
1642584 - CVE-2018-18073 ghostscript: Saved execution stacks can leak operator
arrays
1642940 - CVE-2018-18284 ghostscript: 1Policy operator allows a sandbox
protection bypass
1652583 - CVE-2018-19409 ghostscript: Improperly implemented security check in
zsetdevice function in psi/zdevice.c
1655599 - CVE-2018-19134 ghostscript: Type confusion in setpattern (700141)
1657822 - ghostscript: Regression: Warning: Dropping incorrect smooth shading
object (Error: /rangecheck in --run--) [rhel-7.6.z]
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
ghostscript-9.07-31.el7_6.6.src.rpm
x86_64:
ghostscript-9.07-31.el7_6.6.i686.rpm
ghostscript-9.07-31.el7_6.6.x86_64.rpm
ghostscript-cups-9.07-31.el7_6.6.x86_64.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.i686.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch:
ghostscript-doc-9.07-31.el7_6.6.noarch.rpm
x86_64:
ghostscript-debuginfo-9.07-31.el7_6.6.i686.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.x86_64.rpm
ghostscript-devel-9.07-31.el7_6.6.i686.rpm
ghostscript-devel-9.07-31.el7_6.6.x86_64.rpm
ghostscript-gtk-9.07-31.el7_6.6.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
ghostscript-9.07-31.el7_6.6.src.rpm
x86_64:
ghostscript-9.07-31.el7_6.6.i686.rpm
ghostscript-9.07-31.el7_6.6.x86_64.rpm
ghostscript-cups-9.07-31.el7_6.6.x86_64.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.i686.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
noarch:
ghostscript-doc-9.07-31.el7_6.6.noarch.rpm
x86_64:
ghostscript-debuginfo-9.07-31.el7_6.6.i686.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.x86_64.rpm
ghostscript-devel-9.07-31.el7_6.6.i686.rpm
ghostscript-devel-9.07-31.el7_6.6.x86_64.rpm
ghostscript-gtk-9.07-31.el7_6.6.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
ghostscript-9.07-31.el7_6.6.src.rpm
ppc64:
ghostscript-9.07-31.el7_6.6.ppc.rpm
ghostscript-9.07-31.el7_6.6.ppc64.rpm
ghostscript-cups-9.07-31.el7_6.6.ppc64.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.ppc.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.ppc64.rpm
ppc64le:
ghostscript-9.07-31.el7_6.6.ppc64le.rpm
ghostscript-cups-9.07-31.el7_6.6.ppc64le.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.ppc64le.rpm
s390x:
ghostscript-9.07-31.el7_6.6.s390.rpm
ghostscript-9.07-31.el7_6.6.s390x.rpm
ghostscript-cups-9.07-31.el7_6.6.s390x.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.s390.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.s390x.rpm
x86_64:
ghostscript-9.07-31.el7_6.6.i686.rpm
ghostscript-9.07-31.el7_6.6.x86_64.rpm
ghostscript-cups-9.07-31.el7_6.6.x86_64.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.i686.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
Source:
ghostscript-9.07-31.el7_6.6.src.rpm
aarch64:
ghostscript-9.07-31.el7_6.6.aarch64.rpm
ghostscript-cups-9.07-31.el7_6.6.aarch64.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.aarch64.rpm
ppc64le:
ghostscript-9.07-31.el7_6.6.ppc64le.rpm
ghostscript-cups-9.07-31.el7_6.6.ppc64le.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.ppc64le.rpm
s390x:
ghostscript-9.07-31.el7_6.6.s390.rpm
ghostscript-9.07-31.el7_6.6.s390x.rpm
ghostscript-cups-9.07-31.el7_6.6.s390x.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.s390.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.s390x.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
noarch:
ghostscript-doc-9.07-31.el7_6.6.noarch.rpm
ppc64:
ghostscript-debuginfo-9.07-31.el7_6.6.ppc.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.ppc64.rpm
ghostscript-devel-9.07-31.el7_6.6.ppc.rpm
ghostscript-devel-9.07-31.el7_6.6.ppc64.rpm
ghostscript-gtk-9.07-31.el7_6.6.ppc64.rpm
ppc64le:
ghostscript-debuginfo-9.07-31.el7_6.6.ppc64le.rpm
ghostscript-devel-9.07-31.el7_6.6.ppc64le.rpm
ghostscript-gtk-9.07-31.el7_6.6.ppc64le.rpm
s390x:
ghostscript-debuginfo-9.07-31.el7_6.6.s390.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.s390x.rpm
ghostscript-devel-9.07-31.el7_6.6.s390.rpm
ghostscript-devel-9.07-31.el7_6.6.s390x.rpm
ghostscript-gtk-9.07-31.el7_6.6.s390x.rpm
x86_64:
ghostscript-debuginfo-9.07-31.el7_6.6.i686.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.x86_64.rpm
ghostscript-devel-9.07-31.el7_6.6.i686.rpm
ghostscript-devel-9.07-31.el7_6.6.x86_64.rpm
ghostscript-gtk-9.07-31.el7_6.6.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional
(v. 7):
aarch64:
ghostscript-debuginfo-9.07-31.el7_6.6.aarch64.rpm
ghostscript-devel-9.07-31.el7_6.6.aarch64.rpm
ghostscript-gtk-9.07-31.el7_6.6.aarch64.rpm
noarch:
ghostscript-doc-9.07-31.el7_6.6.noarch.rpm
ppc64le:
ghostscript-debuginfo-9.07-31.el7_6.6.ppc64le.rpm
ghostscript-devel-9.07-31.el7_6.6.ppc64le.rpm
ghostscript-gtk-9.07-31.el7_6.6.ppc64le.rpm
s390x:
ghostscript-debuginfo-9.07-31.el7_6.6.s390.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.s390x.rpm
ghostscript-devel-9.07-31.el7_6.6.s390.rpm
ghostscript-devel-9.07-31.el7_6.6.s390x.rpm
ghostscript-gtk-9.07-31.el7_6.6.s390x.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
ghostscript-9.07-31.el7_6.6.src.rpm
x86_64:
ghostscript-9.07-31.el7_6.6.i686.rpm
ghostscript-9.07-31.el7_6.6.x86_64.rpm
ghostscript-cups-9.07-31.el7_6.6.x86_64.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.i686.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
noarch:
ghostscript-doc-9.07-31.el7_6.6.noarch.rpm
x86_64:
ghostscript-debuginfo-9.07-31.el7_6.6.i686.rpm
ghostscript-debuginfo-9.07-31.el7_6.6.x86_64.rpm
ghostscript-devel-9.07-31.el7_6.6.i686.rpm
ghostscript-devel-9.07-31.el7_6.6.x86_64.rpm
ghostscript-gtk-9.07-31.el7_6.6.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-2018-15911
https://access.redhat.com/security/cve/CVE-2018-16541
https://access.redhat.com/security/cve/CVE-2018-16802
https://access.redhat.com/security/cve/CVE-2018-17183
https://access.redhat.com/security/cve/CVE-2018-17961
https://access.redhat.com/security/cve/CVE-2018-18073
https://access.redhat.com/security/cve/CVE-2018-18284
https://access.redhat.com/security/cve/CVE-2018-19134
https://access.redhat.com/security/cve/CVE-2018-19409
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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