CVE-2020-6820
Published: 03 April 2020
Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
Priority
High
CVSS 3 base score: 8.1
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
Upstream |
Released
(74.0.1)
|
| Ubuntu 20.10 (Groovy Gorilla) |
Released
(75.0+build3-0ubuntu1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(75.0+build3-0ubuntu1)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(74.0.1+build1-0ubuntu0.18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(74.0.1+build1-0ubuntu0.16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
Upstream |
Released
(68.7.0)
|
| Ubuntu 20.10 (Groovy Gorilla) |
Released
(1:68.7.0+build1-0ubuntu1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(1:68.7.0+build1-0ubuntu1)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(1:68.7.0+build1-0ubuntu0.18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(1:68.7.0+build1-0ubuntu0.16.04.2)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|