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
EPSS
Percentile
98.8%
Several vulnerabilities have been discovered in libvncserver, a library to implement VNC server functionality. These vulnerabilities might result in the execution of arbitrary code or denial of service in both the client and the server side.
For the oldstable distribution (squeeze), these problems have been fixed in version 0.9.7-2+deb6u1.
This update has been prepared by Nguyen Cong.
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-197-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(82784);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2014-6051", "CVE-2014-6052", "CVE-2014-6053", "CVE-2014-6054", "CVE-2014-6055");
script_bugtraq_id(70091, 70092, 70093, 70094, 70096);
script_name(english:"Debian DLA-197-1 : libvncserver security update");
script_summary(english:"Checks dpkg output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"Several vulnerabilities have been discovered in libvncserver, a
library to implement VNC server functionality. These vulnerabilities
might result in the execution of arbitrary code or denial of service
in both the client and the server side.
For the oldstable distribution (squeeze), these problems have been
fixed in version 0.9.7-2+deb6u1.
This update has been prepared by Nguyen Cong.
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/2015/04/msg00011.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/squeeze-lts/libvncserver"
);
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:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvncserver-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvncserver0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvncserver0-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linuxvnc");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
script_set_attribute(attribute:"patch_publication_date", value:"2015/04/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/04/15");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.");
script_family(english:"Debian Local Security Checks");
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:"6.0", prefix:"libvncserver-dev", reference:"0.9.7-2+deb6u1")) flag++;
if (deb_check(release:"6.0", prefix:"libvncserver0", reference:"0.9.7-2+deb6u1")) flag++;
if (deb_check(release:"6.0", prefix:"libvncserver0-dbg", reference:"0.9.7-2+deb6u1")) flag++;
if (deb_check(release:"6.0", prefix:"linuxvnc", reference:"0.9.7-2+deb6u1")) 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-2014-6051
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6052
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6053
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6054
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6055
lists.debian.org/debian-lts-announce/2015/04/msg00011.html
packages.debian.org/source/squeeze-lts/libvncserver