USN-3660-1: Thunderbird vulnerabilities

25 May 2018

thunderbird vulnerabilities

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

  • Ubuntu 18.04 LTS
  • Ubuntu 17.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in Thunderbird.

Software Description

  • thunderbird - Mozilla Open Source mail and newsgroup client

Details

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 via application crash, install lightweight themes without user interaction, or execute arbitrary code. (CVE-2018-5150, CVE-2018-5154, CVE-2018-5155, CVE-2018-5159, CVE-2018-5168, CVE-2018-5178)

An issue was discovered when processing message headers in Thunderbird. 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 hang. (CVE-2018-5161)

It was discovered encrypted messages could leak plaintext via the src attribute of remote images or links. An attacker could potentially exploit this to obtain sensitive information. (CVE-2018-5162)

It was discovered that the filename of an attachment could be spoofed. An attacker could potentially exploit this by tricking the user in to opening an attachment of a different type to the one expected. (CVE-2018-5170)

Multiple security issues were discovered in Skia. 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. (CVE-2018-5183)

It was discovered that S/MIME encrypted messages with remote content could leak plaintext via a chosen-ciphertext attack. An attacker could potentially exploit this to obtain sensitive information. (CVE-2018-5184)

It was discovered that plaintext of decrypted emails could leak by submitting an embedded form. An attacker could potentially exploit this to obtain sensitive information. (CVE-2018-5185)

Update instructions

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

Ubuntu 18.04 LTS
thunderbird - 1:52.8.0+build1-0ubuntu0.18.04.1
Ubuntu 17.10
thunderbird - 1:52.8.0+build1-0ubuntu0.17.10.1
Ubuntu 16.04 LTS
thunderbird - 1:52.8.0+build1-0ubuntu0.16.04.1
Ubuntu 14.04 LTS
thunderbird - 1:52.8.0+build1-0ubuntu0.14.04.1

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.

References