Ubuntu Security Notice USN-2712-1
25th August, 2015
thunderbird vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Several security issues were fixed in Thunderbird.
Software description
- thunderbird
– Mozilla Open Source mail and newsgroup client
Details
Gary Kwong, Christian Holler, and Byron Campen discovered multiple memory
safety issues in Thunderbird. If a user were tricked in to opening a
specially crafted message, an attacker could potentially exploit these to
cause a denial of service via application crash, or execute arbitrary code
with the privileges ofthe user invoking Thunderbird. (CVE-2015-4473)
Ronald Crane reported 3 security issues. If a user were tricked in to
opening a specially crafted message, an attacker could potentially
exploit these, in combination with another security vulnerability, to
cause a denial of service via application crash, or execute arbitrary
code with the privileges of the user invoking Thunderbird. (CVE-2015-4487,
CVE-2015-4488, CVE-2015-4489)
Gustavo Grieco discovered a heap overflow in gdk-pixbuf. If a user were
tricked in to opening a specially crafted message, an attacker could
potentially exploit this to cause a denial of service via application
crash or execute arbitrary code with the priviliges of the user invoking
Thunderbird. (CVE-2015-4491)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 15.04:
-
thunderbird
1:38.2.0+build1-0ubuntu0.15.04.1
- Ubuntu 14.04 LTS:
-
thunderbird
1:38.2.0+build1-0ubuntu0.14.04.1
- Ubuntu 12.04 LTS:
-
thunderbird
1:38.2.0+build1-0ubuntu0.12.04.2
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart Thunderbird to make
all the necessary changes.