Ubuntu 18.10: USN-3927-1 Moderate: Thunderbird Security Flaws Exploits

ubuntu

March 28, 2019

Several security issues were fixed in Thunderbird.

Summary

Several security issues were fixed in Thunderbird.

Software Description:

- thunderbird: Mozilla Open Source mail and newsgroup client

Details:

It was discovered that Thunderbird allowed PAC files to specify that

requests to localhost are sent through the proxy to another server. If

proxy auto-detection is enabled, an attacker could potentially exploit

this to conduct attacks on local services and tools. (CVE-2018-18506)

Multiple security issues were discovered in Thunderbird. If a user were

tricked in to opening a specially crafted website in a browsing context,

an attacker could potentially exploit these to cause a denial of service,

or execute arbitrary code. (CVE-2019-9788, CVE-2019-9790, CVE-2019-9791,

CVE-2019-9792, CVE-2019-9795, CVE-2019-9796, CVE-2019-9810, CVE-2019-9813)

A mechanism was discovered that removes some bounds checking for string,

array, or typed array accesses if Spectre mitigations have been disabled.

If a user were tricked in to ope...

Read the Full Advisory

Topics Covered

security advisory moderate security issue software update Ubuntu Thunderbird proxy exploits

Update Instructions

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

Ubuntu 18.10:
  thunderbird                     1:60.6.1+build2-0ubuntu0.18.10.1

Ubuntu 18.04 LTS:
  thunderbird                     1:60.6.1+build2-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  thunderbird                     1:60.6.1+build2-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
  thunderbird                     1:60.6.1+build2-0ubuntu0.14.04.1

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