Security Fix(es) :
It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977)
It was found that the ghostscript function .setdevice suffered a use- after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978)
It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process.
(CVE-2016-7979)
It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602)
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(96302);
script_version("3.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2013-5653", "CVE-2016-7977", "CVE-2016-7978", "CVE-2016-7979", "CVE-2016-8602");
script_name(english:"Scientific Linux Security Update : ghostscript on SL7.x x86_64 (20170104)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"Security Fix(es) :
- It was found that the ghostscript functions getenv,
filenameforall and .libfile did not honor the -dSAFER
option, usually used when processing untrusted
documents, leading to information disclosure. A
specially crafted postscript document could read
environment variable, list directory and retrieve file
content respectively, from the target. (CVE-2013-5653,
CVE-2016-7977)
- It was found that the ghostscript function .setdevice
suffered a use- after-free vulnerability due to an
incorrect reference count. A specially crafted
postscript document could trigger code execution in the
context of the gs process. (CVE-2016-7978)
- It was found that the ghostscript function
.initialize_dsc_parser did not validate its parameter
before using it, allowing a type confusion flaw. A
specially crafted postscript document could cause a
crash code execution in the context of the gs process.
(CVE-2016-7979)
- It was found that ghostscript did not sufficiently check
the validity of parameters given to the .sethalftone5
function. A specially crafted postscript document could
cause a crash, or execute arbitrary code in the context
of the gs process. (CVE-2016-8602)"
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1701&L=scientific-linux-errata&F=&S=&P=409
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?472d4987"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ghostscript");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ghostscript-cups");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ghostscript-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ghostscript-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ghostscript-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ghostscript-gtk");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/03/07");
script_set_attribute(attribute:"patch_publication_date", value:"2017/01/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/05");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ghostscript-9.07-20.el7_3.1")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ghostscript-cups-9.07-20.el7_3.1")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ghostscript-debuginfo-9.07-20.el7_3.1")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ghostscript-devel-9.07-20.el7_3.1")) flag++;
if (rpm_check(release:"SL7", reference:"ghostscript-doc-9.07-20.el7_3.1")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ghostscript-gtk-9.07-20.el7_3.1")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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-debuginfo / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | ghostscript | p-cpe:/a:fermilab:scientific_linux:ghostscript |
fermilab | scientific_linux | ghostscript-cups | p-cpe:/a:fermilab:scientific_linux:ghostscript-cups |
fermilab | scientific_linux | ghostscript-debuginfo | p-cpe:/a:fermilab:scientific_linux:ghostscript-debuginfo |
fermilab | scientific_linux | ghostscript-devel | p-cpe:/a:fermilab:scientific_linux:ghostscript-devel |
fermilab | scientific_linux | ghostscript-doc | p-cpe:/a:fermilab:scientific_linux:ghostscript-doc |
fermilab | scientific_linux | ghostscript-gtk | p-cpe:/a:fermilab:scientific_linux:ghostscript-gtk |
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |