The remote host is missing an update for the
# Copyright (C) 2020 Greenbone Networks GmbH
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (C) the respective author(s)
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.892109");
script_version("2020-02-20T04:00:07+0000");
script_cve_id("CVE-2019-20444", "CVE-2019-20445", "CVE-2020-7238");
script_tag(name:"cvss_base", value:"6.4");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:N");
script_tag(name:"last_modification", value:"2020-02-20 04:00:07 +0000 (Thu, 20 Feb 2020)");
script_tag(name:"creation_date", value:"2020-02-20 04:00:07 +0000 (Thu, 20 Feb 2020)");
script_name("Debian LTS: Security Advisory for netty (DLA-2109-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
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=DEB8");
script_xref(name:"URL", value:"https://lists.debian.org/debian-lts-announce/2020/02/msg00017.html");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DLA-2109-1");
script_xref(name:"URL", value:"https://bugs.debian.org/950966");
script_xref(name:"URL", value:"https://bugs.debian.org/950967");
script_tag(name:"summary", value:"The remote host is missing an update for the 'netty'
package(s) announced via the DLA-2109-1 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 were discovered in the HTTP server provided by
Netty, a Java NIO client/server socket framework:
CVE-2019-20444
HttpObjectDecoder.java allows an HTTP header that lacks a colon,
which might be interpreted as a separate header with an incorrect
syntax, or might be interpreted as an 'invalid fold.'
CVE-2019-20445
HttpObjectDecoder.java allows a Content-Length header to be
accompanied by a second Content-Length header, or by a
Transfer-Encoding header.
CVE-2020-7238
Netty allows HTTP Request Smuggling because it mishandles
Transfer-Encoding whitespace (such as a
[space]Transfer-Encoding:chunked line) and a later Content-Length
header.");
script_tag(name:"affected", value:"'netty' package(s) on Debian Linux.");
script_tag(name:"solution", value:"For Debian 8 'Jessie', these problems have been fixed in version
1:3.2.6.Final-2+deb8u2.
We recommend that you upgrade your netty packages.");
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");
res = "";
report = "";
if(!isnull(res = isdpkgvuln(pkg:"libnetty-java", ver:"1:3.2.6.Final-2+deb8u2", rls:"DEB8"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);