Executive Summary

Summary
Title Thunderbird regression
Informations
Name USN-4202-2 First vendor Publication 2019-12-10
Vendor Ubuntu Last vendor Modification 2019-12-10
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 19.10 - Ubuntu 18.04 LTS

Summary:

USN-4202-1 caused a regression in Thunderbird.

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

Details:

USN-4202-1 fixed vulnerabilities in Thunderbird. After upgrading, Thunderbird created a new profile for some users. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that a specially crafted S/MIME message with an inner
encryption layer could be displayed as having a valid signature in some
circumstances, even if the signer had no access to the encrypted message.
An attacker could potentially exploit this to spoof the message author.
(CVE-2019-11755)
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,
bypass security restrictions, bypass same-origin restrictions, conduct
cross-site scripting (XSS) attacks, or execute arbitrary code.
(CVE-2019-11757, CVE-2019-11758, CVE-2019-11759, CVE-2019-11760,
CVE-2019-11761, CVE-2019-11762, CVE-2019-11763, CVE-2019-11764)
A heap overflow was discovered in the expat library 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, or execute
arbitrary code. (CVE-2019-15903)

Update instructions:

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

Ubuntu 19.10:
thunderbird 1:68.2.2+build1-0ubuntu0.19.10.1

Ubuntu 18.04 LTS:
thunderbird 1:68.2.2+build1-0ubuntu0.18.04.1

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

References:
https://usn.ubuntu.com/4202-2
https://usn.ubuntu.com/4202-1
https://launchpad.net/bugs/1854150

Package Information:

https://launchpad.net/ubuntu/+source/thunderbird/1:68.2.2+build1-0ubuntu0.19.10.1

https://launchpad.net/ubuntu/+source/thunderbird/1:68.2.2+build1-0ubuntu0.18.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-4202-2

CWE : Common Weakness Enumeration

% Id Name
33 % CWE-776 Unrestricted Recursive Entity References in DTDs ('XML Bomb')
33 % CWE-347 Improper Verification of Cryptographic Signature
33 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 12
Application 417

Snort® IPS/IDS

Date Description
2019-12-17 libexpat internal entity heap over-read attempt
RuleID : 52254 - Revision : 1 - Type : FILE-OTHER
2019-12-17 libexpat internal entity heap over-read attempt
RuleID : 52253 - Revision : 1 - Type : FILE-OTHER

Alert History

If you want to see full details history, please login or register.
0
Date Informations
2019-12-11 00:20:08
  • First insertion