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Sicherheit: Mehrere Probleme in Subversion
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Subversion
ID: USN-3388-1
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 17.04
Datum: Fr, 11. August 2017, 09:31
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2167
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8734
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9800

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-3388-1
August 11, 2017

subversion vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Subversion.

Software Description:
- subversion: Advanced version control system

Details:

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)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 17.04:
libsvn1 1.9.5-1ubuntu1.1
subversion 1.9.5-1ubuntu1.1

Ubuntu 16.04 LTS:
libapache2-mod-svn 1.9.3-2ubuntu1.1
libapache2-svn 1.9.3-2ubuntu1.1
libsvn1 1.9.3-2ubuntu1.1
subversion 1.9.3-2ubuntu1.1

Ubuntu 14.04 LTS:
libapache2-mod-svn 1.8.8-1ubuntu3.3
libapache2-svn 1.8.8-1ubuntu3.3
libsvn1 1.8.8-1ubuntu3.3
subversion 1.8.8-1ubuntu3.3

In general, a standard system update will make all the necessary changes.

References:
https://www.ubuntu.com/usn/usn-3388-1
CVE-2016-2167, CVE-2016-8734, CVE-2017-9800

Package Information:
https://launchpad.net/ubuntu/+source/subversion/1.9.5-1ubuntu1.1
https://launchpad.net/ubuntu/+source/subversion/1.9.3-2ubuntu1.1
https://launchpad.net/ubuntu/+source/subversion/1.8.8-1ubuntu3.3


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