Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : subversion vulnerabilities (USN-3388-1)

High Nessus Plugin ID 102424


The remote Ubuntu host is missing one or more security-related patches.


Joern Schneeweisz discovered that Subversion did not properly handle host names in 'svn+ssh://' URLs. A remote attacker could use this to construct a subversion repository that when accessed could run arbitrary code with the privileges of the user. (CVE-2017-9800)

Daniel Shahaf and James McCoy discovered that Subversion did not properly verify realms when using Cyrus SASL authentication. A remote attacker could use this to possibly bypass intended access restrictions. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-2167)

Florian Weimer discovered that Subversion clients did not properly restrict XML entity expansion when accessing http(s):// URLs. A remote attacker could use this to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-8734).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected packages.

Plugin Details

Severity: High

ID: 102424

File Name: ubuntu_USN-3388-1.nasl

Version: $Revision: 3.7 $

Type: local

Agent: unix

Published: 2017/08/11

Modified: 2018/01/31

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 6.2

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND


Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-svn, p-cpe:/a:canonical:ubuntu_linux:libapache2-svn, p-cpe:/a:canonical:ubuntu_linux:libsvn1, p-cpe:/a:canonical:ubuntu_linux:subversion, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:17.04

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/08/11

Reference Information

CVE: CVE-2016-2167, CVE-2016-8734, CVE-2017-9800

OSVDB: 137779, 147947, 163119

USN: 3388-1

IAVA: 2017-A-0252