Debian DLA-2286-1 : tomcat8 security update

high Nessus Plugin ID 138859

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Synopsis

The remote Debian host is missing a security update.

Description

Several security vulnerabilities have been discovered in the Tomcat servlet and JSP engine.

CVE-2020-13934

An h2c direct connection to Apache Tomcat did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.

CVE-2020-13935

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat. Invalid payload lengths could trigger an infinite loop.
Multiple requests with invalid payload lengths could lead to a denial of service.

For Debian 9 stretch, these problems have been fixed in version 8.5.54-0+deb9u3.

We recommend that you upgrade your tomcat8 packages.

For the detailed security status of tomcat8 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/tomcat8

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.

Solution

Upgrade the affected packages.

Plugin Details

Severity: High

ID: 138859

File Name: debian_DLA-2286.nasl

Version: 1.8

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 7/23/2020

Updated: 2/29/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2020-13935

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libtomcat8-embed-java, p-cpe:/a:debian:debian_linux:tomcat8-admin, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:libtomcat8-java, p-cpe:/a:debian:debian_linux:libservlet3.1-java, p-cpe:/a:debian:debian_linux:libservlet3.1-java-doc, p-cpe:/a:debian:debian_linux:tomcat8-docs, p-cpe:/a:debian:debian_linux:tomcat8-user, p-cpe:/a:debian:debian_linux:tomcat8, p-cpe:/a:debian:debian_linux:tomcat8-common, p-cpe:/a:debian:debian_linux:tomcat8-examples

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 7/22/2020

Vulnerability Publication Date: 7/14/2020

Reference Information

CVE: CVE-2020-13934, CVE-2020-13935

IAVA: 2020-A-0316-S

Detections

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