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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
85.5%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2022 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.1.10.2017.0027");
script_cve_id("CVE-2016-9941", "CVE-2016-9942");
script_tag(name:"creation_date", value:"2022-01-28 10:58:44 +0000 (Fri, 28 Jan 2022)");
script_version("2024-02-02T05:06:09+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"7.5");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2017-01-04 14:31:11 +0000 (Wed, 04 Jan 2017)");
script_name("Mageia: Security Advisory (MGASA-2017-0027)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2022 Greenbone AG");
script_family("Mageia Linux Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA5");
script_xref(name:"Advisory-ID", value:"MGASA-2017-0027");
script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2017-0027.html");
script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=20075");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/CVE-2016-9941");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/CVE-2016-9942");
script_tag(name:"summary", value:"The remote host is missing an update for the 'libvncserver' package(s) announced via the MGASA-2017-0027 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"It was discovered that there were two vulnerabilities in libvncserver, a
library to create/embed a VNC server:
A heap-based buffer overflow that allows remote servers to cause a
denial of service via a crafted FramebufferUpdate message containing a
subrectangle outside of the drawing area (CVE-2016-9941).
A heap-based buffer overflow that allow remote servers to cause a denial
of service via a crafted FramebufferUpdate message with the 'Ultra' type
tile such that the LZO decompressed payload exceeds the size of the tile
dimensions (CVE-2016-9942).");
script_tag(name:"affected", value:"'libvncserver' package(s) on Mageia 5.");
script_tag(name:"solution", value:"Please install the updated package(s).");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"package");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "MAGEIA5") {
if(!isnull(res = isrpmvuln(pkg:"lib64vncserver-devel", rpm:"lib64vncserver-devel~0.9.10~1.2.mga5", rls:"MAGEIA5"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"lib64vncserver0", rpm:"lib64vncserver0~0.9.10~1.2.mga5", rls:"MAGEIA5"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libvncserver", rpm:"libvncserver~0.9.10~1.2.mga5", rls:"MAGEIA5"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libvncserver-devel", rpm:"libvncserver-devel~0.9.10~1.2.mga5", rls:"MAGEIA5"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libvncserver0", rpm:"libvncserver0~0.9.10~1.2.mga5", rls:"MAGEIA5"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
85.5%