RHSA-2019:2586 - Security Advisory

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 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.

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: Safer mode bypass by .forceput exposure in .pdf_hook_DSC_Creator (701445) (CVE-2019-14811)
• ghostscript: Safer mode bypass by .forceput exposure in setuserparams (701444) (CVE-2019-14812)
• ghostscript: Safer mode bypass by .forceput exposure in setsystemparams (701443) (CVE-2019-14813)
• ghostscript: Safer mode bypass by .forceput exposure in .pdfexectoken and other procedures (701450) (CVE-2019-14817)

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.

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

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.7 ppc64le
• Red Hat Enterprise Linux Server - TUS 7.7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux EUS Compute Node 7.7 x86_64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.7 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 1743737 - CVE-2019-14813 ghostscript: Safer mode bypass by .forceput exposure in setsystemparams (701443)
• BZ - 1743754 - CVE-2019-14812 ghostscript: Safer mode bypass by .forceput exposure in setuserparams (701444)
• BZ - 1743757 - CVE-2019-14811 ghostscript: Safer mode bypass by .forceput exposure in .pdf_hook_DSC_Creator (701445)
• BZ - 1744042 - CVE-2019-14817 ghostscript: Safer mode bypass by .forceput exposure in .pdfexectoken and other procedures (701450)

CVEs

• CVE-2019-14811
• CVE-2019-14812
• CVE-2019-14813
• CVE-2019-14817

References

• https://access.redhat.com/security/updates/classification/#important