Debian DSA-3974-1 : tomcat8 - security update

high Nessus Plugin ID 103259
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Debian host is missing a security-related update.

Description

Two issues were discovered in the Tomcat servlet and JSP engine.

- CVE-2017-7674 Rick Riemer discovered that the Cross-Origin Resource Sharing filter did not add a Vary header indicating possible different responses, which could lead to cache poisoning.

- CVE-2017-7675 (stretch only) Markus Dorschmidt found that the HTTP/2 implementation bypassed some security checks, thus allowing an attacker to conduct directory traversal attacks by using specially crafted URLs.

Solution

Upgrade the tomcat8 packages.

For the oldstable distribution (jessie), these problems have been fixed in version 8.0.14-1+deb8u11.

For the stable distribution (stretch), these problems have been fixed in version 8.5.14-1+deb9u2.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=802312

https://security-tracker.debian.org/tracker/CVE-2017-7674

https://security-tracker.debian.org/tracker/CVE-2017-7675

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

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

https://www.debian.org/security/2017/dsa-3974

Plugin Details

Severity: High

ID: 103259

File Name: debian_DSA-3974.nasl

Version: 3.6

Type: local

Agent: unix

Published: 9/18/2017

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:tomcat8, cpe:/o:debian:debian_linux:8.0, cpe:/o:debian:debian_linux:9.0

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

Patch Publication Date: 9/15/2017

Reference Information

CVE: CVE-2017-7674, CVE-2017-7675

DSA: 3974