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
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
AI Score
Confidence
High
EPSS
Percentile
78.7%
Multiple vulnerabilities were found in ghostscript, an interpreter for the PostScript language and for PDF, allowing an attacker to escalate privileges and cause denial of service via crafted PS/EPS/PDF files.
For Debian 9 stretch, these problems have been fixed in version 9.26a~dfsg-0+deb9u7.
We recommend that you upgrade your ghostscript packages.
For the detailed security status of ghostscript please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/ghostscript
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2335-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(139735);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/23");
script_cve_id(
"CVE-2020-16287",
"CVE-2020-16288",
"CVE-2020-16289",
"CVE-2020-16290",
"CVE-2020-16291",
"CVE-2020-16292",
"CVE-2020-16293",
"CVE-2020-16294",
"CVE-2020-16295",
"CVE-2020-16296",
"CVE-2020-16297",
"CVE-2020-16298",
"CVE-2020-16299",
"CVE-2020-16300",
"CVE-2020-16301",
"CVE-2020-16302",
"CVE-2020-16303",
"CVE-2020-16304",
"CVE-2020-16305",
"CVE-2020-16306",
"CVE-2020-16307",
"CVE-2020-16308",
"CVE-2020-16309",
"CVE-2020-16310",
"CVE-2020-17538"
);
script_xref(name:"IAVB", value:"2020-B-0046-S");
script_name(english:"Debian DLA-2335-1 : ghostscript security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
script_set_attribute(attribute:"description", value:
"Multiple vulnerabilities were found in ghostscript, an interpreter for
the PostScript language and for PDF, allowing an attacker to escalate
privileges and cause denial of service via crafted PS/EPS/PDF files.
For Debian 9 stretch, these problems have been fixed in version
9.26a~dfsg-0+deb9u7.
We recommend that you upgrade your ghostscript packages.
For the detailed security status of ghostscript please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/ghostscript
NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues.");
script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2020/08/msg00032.html");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/ghostscript");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/ghostscript");
script_set_attribute(attribute:"solution", value:
"Upgrade the affected 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-2020-16303");
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:"2020/08/13");
script_set_attribute(attribute:"patch_publication_date", value:"2020/08/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/08/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ghostscript");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ghostscript-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ghostscript-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ghostscript-x");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgs-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgs9");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgs9-common");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"9.0", prefix:"ghostscript", reference:"9.26a~dfsg-0+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"ghostscript-dbg", reference:"9.26a~dfsg-0+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"ghostscript-doc", reference:"9.26a~dfsg-0+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"ghostscript-x", reference:"9.26a~dfsg-0+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libgs-dev", reference:"9.26a~dfsg-0+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libgs9", reference:"9.26a~dfsg-0+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libgs9-common", reference:"9.26a~dfsg-0+deb9u7")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16287
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16288
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16289
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16290
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16291
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16292
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16293
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16294
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16295
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16296
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16297
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16298
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16299
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16300
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16301
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16302
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16303
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16304
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16305
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16306
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16307
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16308
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16309
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16310
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17538
lists.debian.org/debian-lts-announce/2020/08/msg00032.html
packages.debian.org/source/stretch/ghostscript
security-tracker.debian.org/tracker/source-package/ghostscript
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
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
AI Score
Confidence
High
EPSS
Percentile
78.7%