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Ubuntu 18.04: USN-4995-2 Moderate: Thunderbird Denial Of Service

ubuntu
Calendar Grey June 25, 2021
Dist Ubuntu Esm H88
Numerous vulnerabilities have been resolved in Thunderbird on Ubuntu 18.04, boosting safety for users against potential threats.
Several security issues were fixed in Thunderbird.

Summary

Several security issues were fixed in Thunderbird.

Software Description:

- thunderbird: Mozilla Open Source mail and newsgroup client

Details:

USN-4995-1 fixed vulnerabilities in Thunderbird. This update provides

the corresponding updates for Ubuntu 18.04 LTS.

Original advisory 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, spoof the UI, bypass security restrictions,

or execute arbitrary code. (CVE-2021-23961, CVE-2021-23981,

CVE-2021-23982, CVE-2021-23987, CVE-2021-23994, CVE-2021-23998,

CVE-2021-23999, CVE-2021-29945, CVE-2021-29946, CVE-2021-29967)

It was discovered that extensions could open popup windows with control

of the window title in some circumstances. If a user were tricked into

installing a specially crafted extension, an at...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory moderate denial of service software patch Ubuntu thunderbird

Update Instructions

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

Ubuntu 18.04 LTS:
  thunderbird                     1:78.11.0+build1-0ubuntu0.18.04.2

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

References

https://ubuntu.com/security/notices/USN-4995-2

https://ubuntu.com/security/notices/USN-4995-1

CVE-2021-23961, CVE-2021-23981, CVE-2021-23982, CVE-2021-23984,

CVE-2021-23987, CVE-2021-23991, CVE-2021-23992, CVE-2021-23993,

CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999,

CVE-2021-24002, CVE-2021-29945, CVE-2021-29946, CVE-2021-29948,

CVE-2021-29949, CVE-2021-29956, CVE-2021-29957, CVE-2021-29967

June 25, 2021

Topics%20covered

Topics Covered

security advisory moderate denial of service software patch Ubuntu thunderbird

Package Information

https://launchpad.net/ubuntu/+source/thunderbird/1:78.11.0+build1-0ubuntu0.18.04.2

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