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Ubuntu Security Notice USN-3013-1
June 20, 2016

xmlrpc-c vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in XML-RPC for C and C++.

Software Description:
– xmlrpc-c: Lightweight RPC library based on XML and HTTP

Details:

It was discovered that the Expat code in XML-RPC for C and C++ unexpectedly
called srand in certain circumstances. This could reduce the security of
calling applications. (CVE-2012-6702)

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

Gustavo Grieco discovered that the Expat code in XML-RPC for C and C++
incorrectly handled malformed XML data. If a user or application linked
against XML-RPC for C and C++ were tricked into opening a crafted XML file,
an attacker could cause a denial of service, or possibly execute arbitrary
code. (CVE-2016-0718)

It was discovered that the Expat code in XML-RPC for C and C++ incorrectly
handled malformed XML data. If a user or application linked against XML-RPC
for C and C++ were tricked into opening a crafted XML file, an attacker
could cause a denial of service, or possibly execute arbitrary code.
(CVE-2015-1283, CVE-2016-4472)

Update instructions:

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

Ubuntu 12.04 LTS:
libxmlrpc-c++4 1.16.33-3.1ubuntu5.2
libxmlrpc-core-c3 1.16.33-3.1ubuntu5.2

After a standard system upgrade you need to restart any applications linked
against XML-RPC for C and C++ to effect the necessary changes.

References:
http://www.ubuntu.com/usn/usn-3013-1
CVE-2012-6702, CVE-2015-1283, CVE-2016-0718, CVE-2016-4472,
CVE-2016-5300

Package Information:
https://launchpad.net/ubuntu/+source/xmlrpc-c/1.16.33-3.1ubuntu5.2

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