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Amazon Linux AMI : subversion / mod_dav_svn (ALAS-2015-587)

high Nessus Plugin ID 85632

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Synopsis

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

Description

The mod_dav_svn server in Subversion 1.8.0 through 1.8.11 allows remote attackers to cause a denial of service (memory consumption) via a large number of REPORT requests, which trigger the traversal of FSFS repository nodes. (CVE-2015-0202)

An assertion failure flaw was found in the way the SVN server processed certain requests with dynamically evaluated revision numbers. A remote attacker could use this flaw to cause the SVN server (both svnserve and httpd with the mod_dav_svn module) to crash.
(CVE-2015-0248)

It was found that the mod_dav_svn module did not properly validate the svn:author property of certain requests. An attacker able to create new revisions could use this flaw to spoof the svn:author property.
(CVE-2015-0251)

Solution

Run 'yum update subversion mod_dav_svn' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2015-587.html

Plugin Details

Severity: High

ID: 85632

File Name: ala_ALAS-2015-587.nasl

Version: 2.2

Type: local

Agent: unix

Published: 8/26/2015

Updated: 4/18/2018

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

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

Vulnerability Information

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

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

Patch Publication Date: 8/24/2015

Reference Information

CVE: CVE-2015-0202, CVE-2015-0248, CVE-2015-0251

ALAS: 2015-587