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Ubuntu 16.04 LTS USN-2950-2 Moderate: Libsoup NTLM Authentication Fix

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Calendar Grey April 27, 2016
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Resolution for libsoup NTLM authentication flaw affecting Ubuntu 16.04 and prior versions. Upgrade immediately to enhance your system's security.
This update fixes libsoup NTLM authentication.

Summary

This update fixes libsoup NTLM authentication.

Software Description:

- libsoup2.4: HTTP client/server library for GNOME

Details:

USN-2950-1 fixed vulnerabilities in Samba. The updated Samba packages

introduced a compatibility issue with NTLM authentication in libsoup. This

update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Jouni Knuutinen discovered that Samba contained multiple flaws in the

DCE/RPC implementation. A remote attacker could use this issue to perform

a denial of service, downgrade secure connections by performing a man in

the middle attack, or possibly execute arbitrary code. (CVE-2015-5370)

Stefan Metzmacher discovered that Samba contained multiple flaws in the

NTLMSSP authentication implementation. A remote attacker could use this

issue to downgrade connections to plain text by performing a man in the

middle attack. (CVE-2016-2110)

Alberto Solino discovered that a Samba domain controller ...

Read the Full Advisory

Update Instructions

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

Ubuntu 16.04 LTS:
  libsoup2.4-1                    2.52.2-1ubuntu0.1

Ubuntu 15.10:
  libsoup2.4-1                    2.50.0-2ubuntu0.1

Ubuntu 14.04 LTS:
  libsoup2.4-1                    2.44.2-1ubuntu2.1

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

References

https://ubuntu.com/security/notices/USN-2950-2

https://ubuntu.com/security/notices/USN-2950-1

https://bugs.launchpad.net/libsoup/+bug/1573494

April 27, 2016

Package Information

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