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Ubuntu Security Notice USN-4045-1

Ubuntu Security Notice USN-4045-1
Posted Jul 2, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4045-1 - A type confusion bug was discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could exploit this by causing a denial of service, or executing arbitrary code. It was discovered that a sandboxed child process could open arbitrary web content in the parent process via the Prompt:Open IPC message. When combined with another vulnerability, an attacker could potentially exploit this to execute arbitrary code. Various other issues were also addressed.

tags | advisory, web, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-11707, CVE-2019-11708
SHA-256 | aa2a3d5a29ffb6eaa26e48d80b587fa95ee89cdc07e1e1255730f2aedfbf81c0

Ubuntu Security Notice USN-4045-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4045-1
July 01, 2019

thunderbird vulnerabilities
==========================================================================

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

- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Thunderbird.

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

Details:

A type confusion bug was discovered in Thunderbird. If a user were
tricked in to opening a specially crafted website in a browsing context,
an attacker could exploit this by causing a denial of service, or
executing arbirary code. (CVE-2019-11707)

It was discovered that a sandboxed child process could open arbitrary web
content in the parent process via the Prompt:Open IPC message. When
combined with another vulnerability, an attacker could potentially exploit
this to execute arbitrary code. (CVE-2019-11708)

Update instructions:

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

Ubuntu 19.04:
thunderbird 1:60.7.2+build2-0ubuntu0.19.04.1

Ubuntu 18.10:
thunderbird 1:60.7.2+build2-0ubuntu0.18.10.1

Ubuntu 18.04 LTS:
thunderbird 1:60.7.2+build2-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
thunderbird 1:60.7.2+build2-0ubuntu0.16.04.1

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

References:
https://usn.ubuntu.com/4045-1
CVE-2019-11707, CVE-2019-11708

Package Information:

https://launchpad.net/ubuntu/+source/thunderbird/1:60.7.2+build2-0ubuntu0.19.04.1

https://launchpad.net/ubuntu/+source/thunderbird/1:60.7.2+build2-0ubuntu0.18.10.1

https://launchpad.net/ubuntu/+source/thunderbird/1:60.7.2+build2-0ubuntu0.18.04.1

https://launchpad.net/ubuntu/+source/thunderbird/1:60.7.2+build2-0ubuntu0.16.04.1


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