9.8 High
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
9.2 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access 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
0.013 Low
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("1.3.6.1.4.1.25623.1.0.704332");
script_cve_id("CVE-2018-16395", "CVE-2018-16396");
script_tag(name:"creation_date", value:"2018-11-02 23:00:00 +0000 (Fri, 02 Nov 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:"2018-12-17 18:30:45 +0000 (Mon, 17 Dec 2018)");
script_name("Debian: Security Advisory (DSA-4332-1)");
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=DEB9");
script_xref(name:"Advisory-ID", value:"DSA-4332-1");
script_xref(name:"URL", value:"https://www.debian.org/security/2018/DSA-4332-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4332");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/ruby2.3");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'ruby2.3' package(s) announced via the DSA-4332-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Several vulnerabilities have been discovered in the interpreter for the Ruby language. The Common Vulnerabilities and Exposures project identifies the following problems:
CVE-2018-16395
Tyler Eckstein reported that the equality check of OpenSSL::X509::Name could return true for non-equal objects. If a malicious X.509 certificate is passed to compare with an existing certificate, there is a possibility to be judged incorrectly that they are equal.
CVE-2018-16396
Chris Seaton discovered that tainted flags are not propagated in Array#pack and String#unpack with some directives.
For the stable distribution (stretch), these problems have been fixed in version 2.3.3-1+deb9u4.
We recommend that you upgrade your ruby2.3 packages.
For the detailed security status of ruby2.3 please refer to its security tracker page at: [link moved to references]");
script_tag(name:"affected", value:"'ruby2.3' package(s) on 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 == "DEB9") {
if(!isnull(res = isdpkgvuln(pkg:"libruby2.3", ver:"2.3.3-1+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"ruby2.3", ver:"2.3.3-1+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"ruby2.3-dev", ver:"2.3.3-1+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"ruby2.3-doc", ver:"2.3.3-1+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"ruby2.3-tcltk", ver:"2.3.3-1+deb9u4", rls:"DEB9"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
9.8 High
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
9.2 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access 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
0.013 Low
EPSS
Percentile
85.7%