Debian DLA-2286-1 : tomcat8 security update

Medium Nessus Plugin ID 138859

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VPR Score: 6.1

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.

See Also

https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html

https://packages.debian.org/source/stretch/tomcat8

https://security-tracker.debian.org/tracker/source-package/tomcat8

Plugin Details

Severity: Medium

ID: 138859

File Name: debian_DLA-2286.nasl

Version: 1.5

Type: local

Agent: unix

Published: 2020/07/23

Updated: 2020/10/16

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 6.1

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/07/22

Vulnerability Publication Date: 2020/07/14

Reference Information

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

IAVA: 2020-A-0316-S