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
85.7%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2018 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("1.3.6.1.4.1.25623.1.0.704221");
script_cve_id("CVE-2018-7225");
script_tag(name:"creation_date", value:"2018-06-07 22:00:00 +0000 (Thu, 07 Jun 2018)");
script_version("2024-02-02T05:06:06+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:06 +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:"2018-03-19 15:20:21 +0000 (Mon, 19 Mar 2018)");
script_name("Debian: Security Advisory (DSA-4221-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2018 Greenbone AG");
script_family("Debian Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB(8|9)");
script_xref(name:"Advisory-ID", value:"DSA-4221-1");
script_xref(name:"URL", value:"https://www.debian.org/security/2018/DSA-4221-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4221");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/libvncserver");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'libvncserver' package(s) announced via the DSA-4221-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Alexander Peslyak discovered that insufficient input sanitising of RFB packets in LibVNCServer could result in the disclosure of memory contents.
For the oldstable distribution (jessie), this problem has been fixed in version 0.9.9+dfsg2-6.1+deb8u3.
For the stable distribution (stretch), this problem has been fixed in version 0.9.11+dfsg-1+deb9u1.
We recommend that you upgrade your libvncserver packages.
For the detailed security status of libvncserver please refer to its security tracker page at: [link moved to references]");
script_tag(name:"affected", value:"'libvncserver' package(s) on Debian 8, Debian 9.");
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-deb.inc");
release = dpkg_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "DEB8") {
if(!isnull(res = isdpkgvuln(pkg:"libvncclient0", ver:"0.9.9+dfsg2-6.1+deb8u3", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncclient0-dbg", ver:"0.9.9+dfsg2-6.1+deb8u3", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncserver-config", ver:"0.9.9+dfsg2-6.1+deb8u3", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncserver-dev", ver:"0.9.9+dfsg2-6.1+deb8u3", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncserver0", ver:"0.9.9+dfsg2-6.1+deb8u3", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncserver0-dbg", ver:"0.9.9+dfsg2-6.1+deb8u3", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linuxvnc", ver:"0.9.9+dfsg2-6.1+deb8u3", rls:"DEB8"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "DEB9") {
if(!isnull(res = isdpkgvuln(pkg:"libvncclient1", ver:"0.9.11+dfsg-1+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncclient1-dbg", ver:"0.9.11+dfsg-1+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncserver-config", ver:"0.9.11+dfsg-1+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncserver-dev", ver:"0.9.11+dfsg-1+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncserver1", ver:"0.9.11+dfsg-1+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libvncserver1-dbg", ver:"0.9.11+dfsg-1+deb9u1", rls:"DEB9"))) {
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
85.7%