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Ubuntu Security Notice USN-3010-1

Ubuntu Security Notice USN-3010-1
Posted Jun 21, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3010-1 - It was discovered that Expat unexpectedly called srand in certain circumstances. This could reduce the security of calling applications. It was discovered that Expat incorrectly handled seeding the random number generator. A remote attacker could possibly use this issue to cause a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2012-6702, CVE-2016-5300
SHA-256 | 2b5fd3bd2daa487c282c26072ca85a214252d08ae2b0b736f89d37936653f75d

Ubuntu Security Notice USN-3010-1

Change Mirror Download
From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: "ubuntu-security-announce@lists.ubuntu.com"
<ubuntu-security-announce@lists.ubuntu.com>
Message-ID: <576831FB.40706@canonical.com>
Subject: [USN-3010-1] Expat vulnerabilities




============================================================================
Ubuntu Security Notice USN-3010-1
June 20, 2016

expat vulnerabilities
============================================================================

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

- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in Expat.

Software Description:
- expat: XML parsing C library

Details:

It was discovered that Expat unexpectedly called srand in certain
circumstances. This could reduce the security of calling applications.
(CVE-2012-6702)

It was discovered that Expat incorrectly handled seeding the random number
generator. A remote attacker could possibly use this issue to cause a
denial of service. (CVE-2016-5300)

Update instructions:

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

Ubuntu 16.04 LTS:
lib64expat1 2.1.0-7ubuntu0.16.04.2
libexpat1 2.1.0-7ubuntu0.16.04.2

Ubuntu 15.10:
lib64expat1 2.1.0-7ubuntu0.15.10.2
libexpat1 2.1.0-7ubuntu0.15.10.2

Ubuntu 14.04 LTS:
lib64expat1 2.1.0-4ubuntu1.3
libexpat1 2.1.0-4ubuntu1.3

Ubuntu 12.04 LTS:
lib64expat1 2.0.1-7.2ubuntu1.4
libexpat1 2.0.1-7.2ubuntu1.4

After a standard system upgrade you need to restart any applications linked
against Expat to effect the necessary changes.

References:
http://www.ubuntu.com/usn/usn-3010-1
CVE-2012-6702, CVE-2016-5300

Package Information:
https://launchpad.net/ubuntu/+source/expat/2.1.0-7ubuntu0.16.04.2
https://launchpad.net/ubuntu/+source/expat/2.1.0-7ubuntu0.15.10.2
https://launchpad.net/ubuntu/+source/expat/2.1.0-4ubuntu1.3
https://launchpad.net/ubuntu/+source/expat/2.0.1-7.2ubuntu1.4




--0vbLdEfGNkuRBtqrKQ6Kro0C94U6MEDrt
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