Debian Security Advisory DSA 3796-1 (apache2 - security update)

Published: 2017-02-25 23:00:00
CVE Author: NIST National Vulnerability Database

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

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
apache2 on Debian Linux

Recommendations:
For the stable distribution (jessie), these problems have been fixed in version 2.4.10-10+deb8u8. For the testing (stretch) and unstable (sid) distributions, these problems have been fixed in version 2.4.25-1. We recommend that you upgrade your apache2 Linux Distribution Packages.

Summary:
Several vulnerabilities were discovered in the Apache2 HTTP server. CVE-2016-0736 RedTeam Pentesting GmbH discovered that mod_session_crypto was vulnerable to padding oracle attacks, which could allow an attacker to guess the session cookie. CVE-2016-2161 Maksim Malyutin discovered that malicious input to mod_auth_digest could cause the server to crash, causing a denial of service. CVE-2016-8743 David Dennerline, of IBM Security's X-Force Researchers, and Régis Leroy discovered problems in the way Apache handled a broad pattern of unusual whitespace patterns in HTTP requests. In some configurations, this could lead to response splitting or cache pollution vulnerabilities. To fix these issues, this update makes Apache httpd be more strict in what HTTP requests it accepts. If this causes problems with non-conforming clients, some checks can be relaxed by adding the new directive HttpProtocolOptions unsafe to the configuration. This update also fixes the issue where mod_reqtimeout was not enabled by default on new installations.

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2016-0736
https://nvd.nist.gov/vuln/detail/CVE-2016-2161
https://nvd.nist.gov/vuln/detail/CVE-2016-8743

References:

http://www.debian.org/security/2017/dsa-3796.html

Severity
Medium
CVSS Score
5.0
Published
2017-02-25
Modified
2019-03-18
Category
Debian Local Security Checks

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