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RHEL 7 : ghostscript (RHSA-2018:2918)

high Nessus Plugin ID 118128

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

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.

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.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2018:2918

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

Plugin Details

Severity: High

ID: 118128

File Name: redhat-RHSA-2018-2918.nasl

Version: 1.9

Type: local

Agent: unix

Published: 10/16/2018

Updated: 7/31/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 7.7

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2018-16509

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:ghostscript-debuginfo, p-cpe:/a:redhat:enterprise_linux:ghostscript-gtk, p-cpe:/a:redhat:enterprise_linux:ghostscript, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.5, cpe:/o:redhat:enterprise_linux:7.7, p-cpe:/a:redhat:enterprise_linux:ghostscript-doc, p-cpe:/a:redhat:enterprise_linux:ghostscript-cups, p-cpe:/a:redhat:enterprise_linux:ghostscript-devel

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/16/2018

Vulnerability Publication Date: 4/18/2018

Exploitable With

Metasploit (Ghostscript Failed Restore Command Execution)

Reference Information

CVE: CVE-2018-10194, CVE-2018-15910, CVE-2018-16509, CVE-2018-16542

RHSA: 2018:2918