7.5 High
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
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.886 High
EPSS
Percentile
98.7%
Updated libvncserver packages fix security vulnerabilities :
An integer overflow in liblzo before 2.07 allows attackers to cause a denial of service or possibly code execution in applications using performing LZO decompression on a compressed payload from the attacker (CVE-2014-4607).
The libvncserver library is built with a bundled copy of minilzo, which is a part of liblzo containing the vulnerable code.
A malicious VNC server can trigger incorrect memory management handling by advertising a large screen size parameter to the VNC client. This would result in multiple memory corruptions and could allow remote code execution on the VNC client (CVE-2014-6051, CVE-2014-6052).
A malicious VNC client can trigger multiple DoS conditions on the VNC server by advertising a large screen size, ClientCutText message length and/or a zero scaling factor parameter (CVE-2014-6053, CVE-2014-6054).
A malicious VNC client can trigger multiple stack-based buffer overflows by passing a long file and directory names and/or attributes (FileTime) when using the file transfer message feature (CVE-2014-6055).
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Mandriva Linux Security Advisory MDVSA-2015:146.
# The text itself is copyright (C) Mandriva S.A.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(82399);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2014-4607", "CVE-2014-6051", "CVE-2014-6052", "CVE-2014-6053", "CVE-2014-6054", "CVE-2014-6055");
script_xref(name:"MDVSA", value:"2015:146");
script_name(english:"Mandriva Linux Security Advisory : libvncserver (MDVSA-2015:146)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Mandriva Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"Updated libvncserver packages fix security vulnerabilities :
An integer overflow in liblzo before 2.07 allows attackers to cause a
denial of service or possibly code execution in applications using
performing LZO decompression on a compressed payload from the attacker
(CVE-2014-4607).
The libvncserver library is built with a bundled copy of minilzo,
which is a part of liblzo containing the vulnerable code.
A malicious VNC server can trigger incorrect memory management
handling by advertising a large screen size parameter to the VNC
client. This would result in multiple memory corruptions and could
allow remote code execution on the VNC client (CVE-2014-6051,
CVE-2014-6052).
A malicious VNC client can trigger multiple DoS conditions on the VNC
server by advertising a large screen size, ClientCutText message
length and/or a zero scaling factor parameter (CVE-2014-6053,
CVE-2014-6054).
A malicious VNC client can trigger multiple stack-based buffer
overflows by passing a long file and directory names and/or attributes
(FileTime) when using the file transfer message feature
(CVE-2014-6055)."
);
script_set_attribute(
attribute:"see_also",
value:"http://advisories.mageia.org/MGASA-2014-0356.html"
);
script_set_attribute(
attribute:"see_also",
value:"http://advisories.mageia.org/MGASA-2014-0397.html"
);
script_set_attribute(
attribute:"solution",
value:
"Update the affected lib64vncserver-devel, lib64vncserver0 and / or
linuxvnc packages."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64vncserver-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64vncserver0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:linuxvnc");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:2");
script_set_attribute(attribute:"patch_publication_date", value:"2015/03/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/30");
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:"Mandriva Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");
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);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);
flag = 0;
if (rpm_check(release:"MDK-MBS2", cpu:"x86_64", reference:"lib64vncserver-devel-0.9.9-4.1.mbs2")) flag++;
if (rpm_check(release:"MDK-MBS2", cpu:"x86_64", reference:"lib64vncserver0-0.9.9-4.1.mbs2")) flag++;
if (rpm_check(release:"MDK-MBS2", cpu:"x86_64", reference:"linuxvnc-0.9.9-4.1.mbs2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
mandriva | linux | lib64vncserver-devel | p-cpe:/a:mandriva:linux:lib64vncserver-devel |
mandriva | linux | lib64vncserver0 | p-cpe:/a:mandriva:linux:lib64vncserver0 |
mandriva | linux | linuxvnc | p-cpe:/a:mandriva:linux:linuxvnc |
mandriva | business_server | 2 | cpe:/o:mandriva:business_server:2 |
advisories.mageia.org/MGASA-2014-0356.html
advisories.mageia.org/MGASA-2014-0397.html
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4607
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
7.5 High
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
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.886 High
EPSS
Percentile
98.7%