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Ubuntu Security Notice USN-1517-1

Ubuntu Security Notice USN-1517-1
Posted Jul 26, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1517-1 - It was discovered that the Mono System.Web library incorrectly filtered certain error messages related to forbidden files. If a user were tricked into opening a specially crafted URL, an attacker could possibly exploit this to conduct cross-site scripting (XSS) attacks. It was discovered that the Mono System.Web library incorrectly handled the EnableViewStateMac property. If a user were tricked into opening a specially crafted URL, an attacker could possibly exploit this to conduct cross-site scripting (XSS) attacks. This issue only affected Ubuntu 10.04 LTS. Various other issues were also addressed.

tags | advisory, web, xss
systems | linux, ubuntu
advisories | CVE-2012-3382, CVE-2010-1459, CVE-2010-1459, CVE-2012-3382
SHA-256 | be0532b5d29f4ce5ef9813a17a2367a5ec386f67370f51d9825d90b7a5f27ec2

Ubuntu Security Notice USN-1517-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1517-1
July 25, 2012

mono vulnerabilities
============================================================================

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS

Summary:

Mono could be made to expose sensitive information over the network.

Software Description:
- mono: Mono is a platform for running and developing applications

Details:

It was discovered that the Mono System.Web library incorrectly filtered
certain error messages related to forbidden files. If a user were tricked
into opening a specially crafted URL, an attacker could possibly exploit
this to conduct cross-site scripting (XSS) attacks. (CVE-2012-3382)

It was discovered that the Mono System.Web library incorrectly handled the
EnableViewStateMac property. If a user were tricked into opening a
specially crafted URL, an attacker could possibly exploit this to conduct
cross-site scripting (XSS) attacks. This issue only affected Ubuntu
10.04 LTS. (CVE-2010-1459)

Update instructions:

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

Ubuntu 12.04 LTS:
libmono-system-web2.0-cil 2.10.8.1-1ubuntu2.2
libmono-system-web4.0-cil 2.10.8.1-1ubuntu2.2

Ubuntu 11.10:
libmono-system-web2.0-cil 2.10.5-1ubuntu0.1
libmono-system-web4.0-cil 2.10.5-1ubuntu0.1

Ubuntu 11.04:
libmono-system-web1.0-cil 2.6.7-5ubuntu3.1
libmono-system-web2.0-cil 2.6.7-5ubuntu3.1

Ubuntu 10.04 LTS:
libmono-system-web1.0-cil 2.4.4~svn151842-1ubuntu4.1
libmono-system-web2.0-cil 2.4.4~svn151842-1ubuntu4.1

After a standard system update you need to restart Mono applications to
make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1517-1
CVE-2010-1459, CVE-2012-3382

Package Information:
https://launchpad.net/ubuntu/+source/mono/2.10.8.1-1ubuntu2.2
https://launchpad.net/ubuntu/+source/mono/2.10.5-1ubuntu0.1
https://launchpad.net/ubuntu/+source/mono/2.6.7-5ubuntu3.1
https://launchpad.net/ubuntu/+source/mono/2.4.4~svn151842-1ubuntu4.1
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