Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 501
Alerts This Week
Warning Icon 1 501

Red Hat: RHSA-2018-2918-01 Important: Ghostscript Remote Code Execution

red hat
Calendar Grey October 16, 2018
Dist Redhat Esm H88
Red Hat has issued a critical security advisory for Ghostscript vulnerabilities affecting Enterprise Linux 8 and 9, urging immediate updates to safeguard systems.
An update for ghostscript is now available for Red Hat Enterprise Linux 7

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)
* ghostscript: LockDistillerParams type confusion (699656) (CVE-2018-15910)
* ghostscript: .definemodifiedfont memory corruption if /typecheck is handled (699668) (CVE-2018-16542)
* ghostscript: Stack-based out-of-bounds write in pdf_set_text_matrix function in gdevpdts.c (CVE-2018-10194)
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-2018-16509, CVE-2018-15910, and CVE-2018-16542.

Topics%20covered

Topics Covered

security advisory Red Hat remote code execution exploit ghostscript important CVE

References

https://access.redhat.com/security/cve/CVE-2018-10194 https://access.redhat.com/security/cve/CVE-2018-15910 https://access.redhat.com/security/cve/CVE-2018-16509 https://access.redhat.com/security/cve/CVE-2018-16542 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: ghostscript-9.07-29.el7_5.2.src.rpm
x86_64: ghostscript-9.07-29.el7_5.2.i686.rpm ghostscript-9.07-29.el7_5.2.x86_64.rpm ghostscript-cups-9.07-29.el7_5.2.x86_64.rpm ghostscript-debuginfo-9.07-29.el7_5.2.i686.rpm ghostscript-debuginfo-9.07-29.el7_5.2.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch: ghostscript-doc-9.07-29.el7_5.2.noarch.rpm
x86_64: ghostscript-debuginfo-9.07-29.el7_5.2.i686.rpm ghostscript-debuginfo-9.07-29.el7_5.2.x86_64.rpm ghostscript-devel-9.07-29.el7_5.2.i686.rpm ghostscript-devel-9.07-29.el7_5.2.x86_64.rpm ghostscript-gtk-9.07-29.el7_5.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: ghostscript-9.07-29.el7_5.2.src.rpm
x86_64: ghostscript-9.07-29.el7_5.2.i686.rpm ghostscript-9.07-29.el7_5.2.x86_64.rpm ghostscript-cups-9.07-29.el7_5.2.x86_64.rpm ghostscript-debuginfo-9.07-29.el7_5.2.i686.rpm ghostscript-debuginfo-9.07-29.el7_5.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
noarch: ghostscript-doc-9.07-29.el7_5.2.noarch.rpm
x86_64: ghostscript-debuginfo-9.07-29.el7_5.2.i686.rpm ghostscript-debuginfo-9.07-29.el7_5.2.x86_64.rpm ghostscript-devel-9.07-29.el7_5.2.i686.rpm ghostscript-devel-9.07-29.el7_5.2.x86_64.rpm ghostscript-gtk-9.07-29.el7_5.2.x86_64.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:2918-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2918
Issue date: 2018-10-16

Topic

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 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 Red Hat remote code execution exploit ghostscript important CVE

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

Bugs Fixed

1569108 - CVE-2018-10194 ghostscript: Stack-based out-of-bounds write in pdf_set_text_matrix function in gdevpdts.c

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

1619751 - CVE-2018-15910 ghostscript: LockDistillerParams type confusion (699656)

1621363 - CVE-2018-16542 ghostscript: .definemodifiedfont memory corruption if /typecheck is handled (699668)

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.