USN-1517-1: Mono vulnerabilities

Releases

• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.04

Packages

• 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-2010-4159)

Update instructions

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

Ubuntu 12.04

• 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-web2.0-cil - 2.6.7-5ubuntu3.1
• libmono-system-web1.0-cil - 2.6.7-5ubuntu3.1

Ubuntu 10.04

• libmono-system-web2.0-cil - 2.4.4~svn151842-1ubuntu4.1
• libmono-system-web1.0-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

• CVE-2010-4159
• CVE-2012-3382