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Ubuntu 12.04 ESM USN-3388-2 Critical: Subversion Access Issues

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Calendar Grey October 24, 2017
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Multiple vulnerabilities affecting Subversion have been rectified in Ubuntu 12.04 ESM, along with guidelines for applying the updates.
Several security issues were fixed in Subversion.

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://ubuntu.com/security/notices/USN-3388-2

  https://ubuntu.com/security/notices/USN-3388-1

  CVE-2016-2167, CVE-2016-2168, CVE-2017-9800

Severity
critical
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October 24, 2017

Package Information

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