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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --C3r8HcxPjzWQxXLj89TMTCmlCgJin45RS Content-Type: multipart/mixed; boundary="NZLZLX0VfUB8Qas3kdvzSowKjqNugKBSV"; protected-headers="v1" From: Chris Coulson <chris.coulson@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <970a8607-adfc-0d9d-150f-10cc172c5f71@canonical.com> Subject: [USN-3660-1] Thunderbird vulnerabilities
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========================================================================== Ubuntu Security Notice USN-3660-1 May 25, 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
After a standard system update you need to restart Thunderbird to make all the necessary changes.
References: https://usn.ubuntu.com/usn/usn-3660-1 CVE-2018-5150, CVE-2018-5154, CVE-2018-5155, CVE-2018-5159, CVE-2018-5161, CVE-2018-5162, CVE-2018-5168, CVE-2018-5170, CVE-2018-5178, CVE-2018-5183, CVE-2018-5184, CVE-2018-5185
Package Information: https://launchpad.net/ubuntu/+source/thunderbird/1:52.8.0+build1-0ubuntu0.18.04.1 https://launchpad.net/ubuntu/+source/thunderbird/1:52.8.0+build1-0ubuntu0.17.10.1 https://launchpad.net/ubuntu/+source/thunderbird/1:52.8.0+build1-0ubuntu0.16.04.1 https://launchpad.net/ubuntu/+source/thunderbird/1:52.8.0+build1-0ubuntu0.14.04.1
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