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Sicherheit: Mehrere Probleme in Thunderbird
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Thunderbird
ID: USN-4936-1
Distribution: Ubuntu
Plattformen: Ubuntu 20.04 LTS, Ubuntu 20.10
Datum: Do, 6. Mai 2021, 23:48
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23969
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23968
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29950
https://launchpad.net/ubuntu/+source/thunderbird/1:78.8.1+build1-0ubuntu0.20.10.1
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23973
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23978
https://launchpad.net/ubuntu/+source/thunderbird/1:78.8.1+build1-0ubuntu0.20.04.1
Applikationen: Mozilla Thunderbird

Originalnachricht

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From: Chris Coulson <chris.coulson@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <5edb3fa4-f4bb-251d-9ba9-3843c109999c@canonical.com>
Subject: [USN-4936-1] Thunderbird vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-4936-1
May 06, 2021

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

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

- Ubuntu 20.10
- Ubuntu 20.04 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 into opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, or execute arbitrary code. (CVE-2021-23968,
CVE-2021-23969, CVE-2021-23973, CVE-2021-23978)

It was discovered that Thunderbird may keep key material in memory in some
circumstances. A local attacker could potentially exploit this to obtain
private keys. (CVE-2021-29950)

Update instructions:

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

Ubuntu 20.10:
thunderbird 1:78.8.1+build1-0ubuntu0.20.10.1

Ubuntu 20.04 LTS:
thunderbird 1:78.8.1+build1-0ubuntu0.20.04.1

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

References:
https://ubuntu.com/security/notices/USN-4936-1
CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978,
CVE-2021-29950

Package Information:

https://launchpad.net/ubuntu/+source/thunderbird/1:78.8.1+build1-0ubuntu0.20.10.1

https://launchpad.net/ubuntu/+source/thunderbird/1:78.8.1+build1-0ubuntu0.20.04.1


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