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RedHat: RHSA-2019-4785 Critical: ImageMagick Security Flaw Detected

red hat
Calendar Grey December 3, 2018
Dist Redhat Esm H88
The recent Ghostscript update for Red Hat Enterprise Linux has been classified as Critical, focusing on resolving significant security vulnerabilities and potential risks.
An update for ghostscript is now available for Red Hat Enterprise Linux 6

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

Summary

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):
* It was discovered that the ghostscript /invalidaccess checks fail under certain conditions. An attacker could possibly exploit this to bypass the - -dSAFER protection and, for example, execute arbitrary shell commands via a specially crafted PostScript document. (CVE-2018-16509)
Red Hat would like to thank Tavis Ormandy (Google Project Zero) for reporting this issue.

Topics%20covered

Topics Covered

security advisory security issue Red Hat software update ghostscript important command bypass

References

https://access.redhat.com/security/cve/CVE-2018-16509 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: ghostscript-8.70-24.el6_10.2.src.rpm
i386: ghostscript-8.70-24.el6_10.2.i686.rpm ghostscript-debuginfo-8.70-24.el6_10.2.i686.rpm
x86_64: ghostscript-8.70-24.el6_10.2.i686.rpm ghostscript-8.70-24.el6_10.2.x86_64.rpm ghostscript-debuginfo-8.70-24.el6_10.2.i686.rpm ghostscript-debuginfo-8.70-24.el6_10.2.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: ghostscript-debuginfo-8.70-24.el6_10.2.i686.rpm ghostscript-devel-8.70-24.el6_10.2.i686.rpm ghostscript-doc-8.70-24.el6_10.2.i686.rpm ghostscript-gtk-8.70-24.el6_10.2.i686.rpm
x86_64: ghostscript-debuginfo-8.70-24.el6_10.2.i686.rpm ghostscript-debuginfo-8.70-24.el6_10.2.x86_64.rpm ghostscript-devel-8.70-24.el6_10.2.i686.rpm ghostscript-devel-8.70-24.el6_10.2.x86_64.rpm ghostscript-doc-8.70-24.el6_10.2.x86_64.rpm ghostscript-gtk-8.70-24.el6_10.2.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: ghostscript-8.70-24.el6_10.2.src.rpm
x86_64: ghostscript-8.70-24.el6_10.2.i686.rpm ghostscript-8.70-24.el6_10.2.x86_64.rpm ghostscript-debuginfo-8.70-24.el6_10.2.i686.rpm ghostscript-debuginfo-8.70-24.el6_10.2.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
x86_64: ghostscript-debuginfo-8.70-24.el6_10.2.i686.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:3760-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3760
Issue date: 2018-12-03

Topic

An update for ghostscript is now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat software update ghostscript important command bypass

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1619748 - CVE-2018-16509 ghostscript: /invalidaccess bypass after failed restore (699654)

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