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
74.7%
This update for LibVNCServer fixes the following issues :
Security issues fixed :
CVE-2018-20749: Fixed a heap out of bounds write vulnerability in rfbserver.c (bsc#1123828)
CVE-2018-20750: Fixed a heap out of bounds write vulnerability in rfbserver.c (bsc#1123832)
CVE-2018-20748: Fixed multiple heap out-of-bound writes in VNC client code (bsc#1123823)
This update was imported from the SUSE:SLE-15:Update update project.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2019-196.
#
# The text description of this plugin is (C) SUSE LLC.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(122296);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/19");
script_cve_id("CVE-2018-20748", "CVE-2018-20749", "CVE-2018-20750");
script_name(english:"openSUSE Security Update : LibVNCServer (openSUSE-2019-196)");
script_set_attribute(attribute:"synopsis", value:
"The remote openSUSE host is missing a security update.");
script_set_attribute(attribute:"description", value:
"This update for LibVNCServer fixes the following issues :
Security issues fixed :
- CVE-2018-20749: Fixed a heap out of bounds write
vulnerability in rfbserver.c (bsc#1123828)
- CVE-2018-20750: Fixed a heap out of bounds write
vulnerability in rfbserver.c (bsc#1123832)
- CVE-2018-20748: Fixed multiple heap out-of-bound writes
in VNC client code (bsc#1123823)
This update was imported from the SUSE:SLE-15:Update update project.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1123823");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1123828");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1123832");
script_set_attribute(attribute:"solution", value:
"Update the affected LibVNCServer 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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-20750");
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:"2019/01/30");
script_set_attribute(attribute:"patch_publication_date", value:"2019/03/23");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/19");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:LibVNCServer-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:LibVNCServer-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvncclient0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvncclient0-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvncserver0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvncserver0-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE 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/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");
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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE15\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.0", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);
flag = 0;
if ( rpm_check(release:"SUSE15.0", reference:"LibVNCServer-debugsource-0.9.10-lp150.3.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"LibVNCServer-devel-0.9.10-lp150.3.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"libvncclient0-0.9.10-lp150.3.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"libvncclient0-debuginfo-0.9.10-lp150.3.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"libvncserver0-0.9.10-lp150.3.6.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"libvncserver0-debuginfo-0.9.10-lp150.3.6.1") ) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "LibVNCServer-debugsource / LibVNCServer-devel / libvncclient0 / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | opensuse | 15.0 | cpe:/o:novell:opensuse:15.0 |
novell | opensuse | libvncserver-debugsource | p-cpe:/a:novell:opensuse:libvncserver-debugsource |
novell | opensuse | libvncserver-devel | p-cpe:/a:novell:opensuse:libvncserver-devel |
novell | opensuse | libvncclient0 | p-cpe:/a:novell:opensuse:libvncclient0 |
novell | opensuse | libvncclient0-debuginfo | p-cpe:/a:novell:opensuse:libvncclient0-debuginfo |
novell | opensuse | libvncserver0 | p-cpe:/a:novell:opensuse:libvncserver0 |
novell | opensuse | libvncserver0-debuginfo | p-cpe:/a:novell:opensuse:libvncserver0-debuginfo |
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
74.7%