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.
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Ubuntu Security Notice USN-1517-1
July 25, 2012
mono vulnerabilities
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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