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[USN-1367-4] Xulrunner vulnerability

Posted on 18 February 2012
Ubuntu Security

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Ubuntu Security Notice USN-1367-4
February 17, 2012

xulrunner-1.9.2 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.10
- Ubuntu 10.04 LTS

Summary:

Xulrunner based applications could be made to crash or run programs as yo=
ur
login if they opened a specially crafted file.

Software Description:
- xulrunner-1.9.2: Mozilla Gecko runtime environment

Details:

USN-1367-1 fixed vulnerabilities in libpng. This provides the correspondi=
ng
update for Xulrunner.

Original advisory details:
=20
Jueri Aedla discovered that libpng did not properly verify the size used=

when allocating memory during chunk decompression. If a user or automate=
d
system using libpng were tricked into opening a specially crafted image,=

an attacker could exploit this to cause a denial of service or execute
code with the privileges of the user invoking the program. (CVE-2011-302=
6)

Update instructions:

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

Ubuntu 10.10:
xulrunner-1.9.2 1.9.2.27+build1+nobinonly-0ubuntu0.10.1=
0.1

Ubuntu 10.04 LTS:
xulrunner-1.9.2 1.9.2.27+build1+nobinonly-0ubuntu0.10.0=
4.1

After a standard system update you need to restart any application based =
on
Xulrunner such as Yelp or Conkeror to make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1367-4
http://www.ubuntu.com/usn/usn-1367-1
CVE-2011-3026, https://launchpad.net/bugs/934073

Package Information:
https://launchpad.net/ubuntu/+source/xulrunner-1.9.2/1.9.2.27+build1+no=
binonly-0ubuntu0.10.10.1
https://launchpad.net/ubuntu/+source/xulrunner-1.9.2/1.9.2.27+build1+no=
binonly-0ubuntu0.10.04.1




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