6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.7 High
AI Score
Confidence
High
0.017 Low
EPSS
Percentile
87.8%
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) :
ghostscript: use-after-free in copydevice handling (699661) (CVE-2018-16540)
ghostscript: access bypass in psi/zdevice2.c (700153) (CVE-2018-19475)
ghostscript: access bypass in psi/zicc.c (700169) (CVE-2018-19476)
ghostscript: access bypass in psi/zfjbig2.c (700168) (CVE-2018-19477)
ghostscript: subroutines within pseudo-operators must themselves be pseudo-operators (700317) (CVE-2019-6116)
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-2019-6116.
Bug Fix(es) :
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2019:0229 and
# CentOS Errata and Security Advisory 2019:0229 respectively.
#
include('compat.inc');
if (description)
{
script_id(122061);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/21");
script_cve_id(
"CVE-2018-16540",
"CVE-2018-19475",
"CVE-2018-19476",
"CVE-2018-19477",
"CVE-2019-6116"
);
script_xref(name:"RHSA", value:"2019:0229");
script_name(english:"CentOS 7 : ghostscript (CESA-2019:0229)");
script_set_attribute(attribute:"synopsis", value:
"The remote CentOS host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"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) :
* ghostscript: use-after-free in copydevice handling (699661)
(CVE-2018-16540)
* ghostscript: access bypass in psi/zdevice2.c (700153)
(CVE-2018-19475)
* ghostscript: access bypass in psi/zicc.c (700169) (CVE-2018-19476)
* ghostscript: access bypass in psi/zfjbig2.c (700168)
(CVE-2018-19477)
* ghostscript: subroutines within pseudo-operators must themselves be
pseudo-operators (700317) (CVE-2019-6116)
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-2019-6116.
Bug Fix(es) :
* Previously, ghostscript-9.07-31.el7_6.1 introduced a regression
during the standard input reading, causing a '/invalidfileaccess in
--run--' error. With this update, the regression has been fixed and
the described error no longer occurs. (BZ#1665919)");
# https://lists.centos.org/pipermail/centos-announce/2019-February/023191.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?437d1158");
script_set_attribute(attribute:"solution", value:
"Update the affected ghostscript packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-6116");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/09/05");
script_set_attribute(attribute:"patch_publication_date", value:"2019/02/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-cups");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-gtk");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CentOS Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);
flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ghostscript-9.07-31.el7_6.9")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ghostscript-cups-9.07-31.el7_6.9")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ghostscript-devel-9.07-31.el7_6.9")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ghostscript-doc-9.07-31.el7_6.9")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ghostscript-gtk-9.07-31.el7_6.9")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ghostscript / ghostscript-cups / ghostscript-devel / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
centos | centos | 7 | cpe:/o:centos:centos:7 |
centos | centos | ghostscript-gtk | p-cpe:/a:centos:centos:ghostscript-gtk |
centos | centos | ghostscript | p-cpe:/a:centos:centos:ghostscript |
centos | centos | ghostscript-doc | p-cpe:/a:centos:centos:ghostscript-doc |
centos | centos | ghostscript-cups | p-cpe:/a:centos:centos:ghostscript-cups |
centos | centos | ghostscript-devel | p-cpe:/a:centos:centos:ghostscript-devel |
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.7 High
AI Score
Confidence
High
0.017 Low
EPSS
Percentile
87.8%