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[USN-1213-1] Thunderbird vulnerabilities

Posted on 29 September 2011
Ubuntu Security

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Ubuntu Security Notice USN-1213-1
September 28, 2011

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

- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS

Summary:

Multiple vulnerabilities were fixed in Thunderbird.

Software Description:
- thunderbird: Mozilla Open Source mail and newsgroup client

Details:

Benjamin Smedberg, Bob Clary, Jesse Ruderman, and Josh Aas discovered
multiple memory vulnerabilities in the Gecko rendering engine. An
attacker could use these to possibly execute arbitrary code with the
privileges of the user invoking Thunderbird. (CVE-2011-2995, CVE-2011-299=
6)

Boris Zbarsky discovered that a frame named "location" could shadow the
window.location object unless a script in a page grabbed a reference to t=
he
true object before the frame was created. This is in violation of the Sam=
e
Origin Policy. A malicious E-Mail could possibly use this to access the
local file system. (CVE-2011-2999)

Mark Kaplan discovered an integer underflow in the SpiderMonkey JavaScrip=
t
engine. An attacker could potentially use this to crash Thunderbird.

Ian Graham discovered that when multiple Location headers were present,
Thunderbird would use the second one resulting in a possible CRLF injecti=
on
attack. CRLF injection issues can result in a wide variety of attacks, su=
ch
as XSS (Cross-Site Scripting) vulnerabilities, browser cache poisoning, a=
nd
cookie theft. (CVE-2011-3000)

Mariusz Mlynski discovered that if the user could be convinced to hold do=
wn
the enter key, a malicious website or E-Mail could potential pop up a
download dialog and the default open action would be selected. This would=

result in potentially malicious content being run with privileges of the
user invoking Thunderbird. (CVE-2011-2372)

Update instructions:

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

Ubuntu 11.04:
thunderbird 3.1.15+build1+nobinonly-0ubuntu0.11.04.=
1

Ubuntu 10.10:
thunderbird 3.1.15+build1+nobinonly-0ubuntu0.10.10.=
1

Ubuntu 10.04 LTS:
thunderbird 3.1.15+build1+nobinonly-0ubuntu0.10.04.=
1

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

References:
http://www.ubuntu.com/usn/usn-1213-1
CVE-2011-2372, CVE-2011-2995, CVE-2011-2996, CVE-2011-2999,
CVE-2011-3000

Package Information:
https://launchpad.net/ubuntu/+source/thunderbird/3.1.15+build1+nobinonl=
y-0ubuntu0.11.04.1
https://launchpad.net/ubuntu/+source/thunderbird/3.1.15+build1+nobinonl=
y-0ubuntu0.10.10.1
https://launchpad.net/ubuntu/+source/thunderbird/3.1.15+build1+nobinonl=
y-0ubuntu0.10.04.1




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