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Ubuntu Security Notice USN-3388-2
October 24, 2017
subversion vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 12.04 ESM
Summary:
Several security issues were fixed in Subversion.
Software Description:
– subversion: Advanced version control system
Details:
USN-3388-1 fixed several vulnerabilities in Subversion. This update
provides the corresponding update for Ubuntu 12.04 ESM.
Ivan Zhakov discovered that Subversion did not properly handle
some requests. A remote attacker could use this to cause a
denial of service. (CVE-2016-2168)
Original advisory 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. (CVE-2016-2167)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
libapache2-svn 1.6.17dfsg-3ubuntu3.7
libsvn1 1.6.17dfsg-3ubuntu3.7
subversion 1.6.17dfsg-3ubuntu3.7
In general, a standard system update will make all the necessary
changes.
References:
https://www.ubuntu.com/usn/usn-3388-2
https://www.ubuntu.com/usn/usn-3388-1
CVE-2016-2167, CVE-2016-2168, CVE-2017-9800
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