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Amazon Linux AMI : subversion (ALAS-2016-709)

medium Nessus Plugin ID 91468

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL authentication is used, allows remote attackers to authenticate and bypass intended access restrictions via a realm string that is a prefix of an expected repository realm string. (CVE-2016-2167)

The req_check_access function in the mod_authz_svn module in the httpd server in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4 allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) via a crafted header in a (1) MOVE or (2) COPY request, involving an authorization check. (CVE-2016-2168)

Solution

Run 'yum update subversion' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2016-709.html

Plugin Details

Severity: Medium

ID: 91468

File Name: ala_ALAS-2016-709.nasl

Version: 2.3

Type: local

Agent: unix

Published: 6/6/2016

Updated: 4/18/2018

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.9

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

CVSS v3

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:mod24_dav_svn, p-cpe:/a:amazon:linux:subversion, p-cpe:/a:amazon:linux:subversion-debuginfo, p-cpe:/a:amazon:linux:subversion-devel, p-cpe:/a:amazon:linux:subversion-javahl, p-cpe:/a:amazon:linux:subversion-libs, p-cpe:/a:amazon:linux:subversion-perl, p-cpe:/a:amazon:linux:subversion-python26, p-cpe:/a:amazon:linux:subversion-python27, p-cpe:/a:amazon:linux:subversion-ruby, p-cpe:/a:amazon:linux:subversion-tools, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Patch Publication Date: 6/2/2016

Reference Information

CVE: CVE-2016-2167, CVE-2016-2168

ALAS: 2016-709