CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
83.1%
It was discovered that various procedures in Ghostscript, the GPL PostScript/PDF interpreter, do not properly restrict privileged calls, which could result in bypass of file system restrictions of the dSAFER sandbox.
For Debian 8 ‘Jessie’, these problems have been fixed in version 9.26a~dfsg-0+deb8u5.
We recommend that you upgrade your ghostscript packages.
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.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1915-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(128619);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/26");
script_cve_id(
"CVE-2019-14811",
"CVE-2019-14812",
"CVE-2019-14813",
"CVE-2019-14817"
);
script_xref(name:"IAVB", value:"2019-B-0081-S");
script_name(english:"Debian DLA-1915-1 : ghostscript security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
script_set_attribute(attribute:"description", value:
"It was discovered that various procedures in Ghostscript, the GPL
PostScript/PDF interpreter, do not properly restrict privileged calls,
which could result in bypass of file system restrictions of the dSAFER
sandbox.
For Debian 8 'Jessie', these problems have been fixed in version
9.26a~dfsg-0+deb8u5.
We recommend that you upgrade your ghostscript packages.
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/2019/09/msg00007.html");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/ghostscript");
script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
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_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-14813");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/03");
script_set_attribute(attribute:"patch_publication_date", value:"2019/09/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/09/10");
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:8.0");
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) 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/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:"8.0", prefix:"ghostscript", reference:"9.26a~dfsg-0+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"ghostscript-dbg", reference:"9.26a~dfsg-0+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"ghostscript-doc", reference:"9.26a~dfsg-0+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"ghostscript-x", reference:"9.26a~dfsg-0+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libgs-dev", reference:"9.26a~dfsg-0+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libgs9", reference:"9.26a~dfsg-0+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libgs9-common", reference:"9.26a~dfsg-0+deb8u5")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14811
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14812
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14813
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14817
lists.debian.org/debian-lts-announce/2019/09/msg00007.html
packages.debian.org/source/jessie/ghostscript
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
83.1%