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Debian DLA-779-1 : tomcat7 security update

high Nessus Plugin ID 96396

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Synopsis

The remote Debian host is missing a security update.

Description

A bug in the error handling of the send file code for the NIO HTTP connector resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not limited to, session ID and the response body.

In addition this update also addresses a regression when running Tomcat 7 with SecurityManager enabled due to an incomplete fix for CVE-2016-6816.

For Debian 7 'Wheezy', these problems have been fixed in version 7.0.28-4+deb7u9.

We recommend that you upgrade your tomcat7 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.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2017/01/msg00011.html

https://packages.debian.org/source/wheezy/tomcat7

Plugin Details

Severity: High

ID: 96396

File Name: debian_DLA-779.nasl

Version: 3.9

Type: local

Agent: unix

Published: 1/11/2017

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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:H/I:N/A:N

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:tomcat7-user, p-cpe:/a:debian:debian_linux:tomcat7-examples, p-cpe:/a:debian:debian_linux:libtomcat7-java, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:tomcat7-admin, p-cpe:/a:debian:debian_linux:tomcat7-docs, p-cpe:/a:debian:debian_linux:tomcat7, p-cpe:/a:debian:debian_linux:libservlet3.0-java, p-cpe:/a:debian:debian_linux:tomcat7-common, p-cpe:/a:debian:debian_linux:libservlet3.0-java-doc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/10/2017

Reference Information

CVE: CVE-2016-8745