CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
89.2%
Two security issues have been discovered in the Tomcat servlet and JSP engine.
CVE-2018-1336
An improper handing of overflow in the UTF-8 decoder with supplementary characters can lead to an infinite loop in the decoder causing a Denial of Service.
CVE-2018-8034
The host name verification when using TLS with the WebSocket client was missing. It is now enabled by default.
For Debian 8 ‘Jessie’, these problems have been fixed in version 8.0.14-1+deb8u13.
We recommend that you upgrade your tomcat8 packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1491-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(112230);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/13");
script_cve_id("CVE-2018-1336", "CVE-2018-8034");
script_name(english:"Debian DLA-1491-1 : tomcat8 security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
script_set_attribute(attribute:"description", value:
"Two security issues have been discovered in the Tomcat servlet and JSP
engine.
CVE-2018-1336
An improper handing of overflow in the UTF-8 decoder with
supplementary characters can lead to an infinite loop in the decoder
causing a Denial of Service.
CVE-2018-8034
The host name verification when using TLS with the WebSocket client
was missing. It is now enabled by default.
For Debian 8 'Jessie', these problems have been fixed in version
8.0.14-1+deb8u13.
We recommend that you upgrade your tomcat8 packages.
NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues.");
script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2018/09/msg00001.html");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/tomcat8");
script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-8034");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"patch_publication_date", value:"2018/09/02");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/09/04");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libservlet3.1-java");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libservlet3.1-java-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libtomcat8-java");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat8");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat8-admin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat8-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat8-docs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat8-examples");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat8-user");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"8.0", prefix:"libservlet3.1-java", reference:"8.0.14-1+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libservlet3.1-java-doc", reference:"8.0.14-1+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libtomcat8-java", reference:"8.0.14-1+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"tomcat8", reference:"8.0.14-1+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"tomcat8-admin", reference:"8.0.14-1+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"tomcat8-common", reference:"8.0.14-1+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"tomcat8-docs", reference:"8.0.14-1+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"tomcat8-examples", reference:"8.0.14-1+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"tomcat8-user", reference:"8.0.14-1+deb8u13")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
89.2%