Vulnerability · Published Dec 22, 2022 · Assigned by mozilla
CVE-2022-0566
High 8.8
In plain English
A high-severity out-of-bounds write in Thunderbird from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 45.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
It may be possible for an attacker to craft an email message that causes Thunderbird to perform an out-of-bounds write of one byte when processing the message. This vulnerability affects Thunderbird < 91.6.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | thunderbird | 91.7.0-2.el8_5.alma | ALSA-2022:0845 |
| AlmaLinux:8 | thunderbird | 91.7.0-2.el8_5.alma.plus | ALSA-2022:0845 |
| Alpine:v3.20 | thunderbird | 91.6.2-r0 | ALPINE-CVE-2022-0566 |
| Alpine:v3.21 | thunderbird | 91.6.2-r0 | ALPINE-CVE-2022-0566 |
| Alpine:v3.22 | thunderbird | 91.6.2-r0 | ALPINE-CVE-2022-0566 |
| Alpine:v3.23 | thunderbird | 91.6.2-r0 | ALPINE-CVE-2022-0566 |
| Debian:12 | thunderbird | 1:91.6.1-1 | DEBIAN-CVE-2022-0566 |
| Debian:13 | thunderbird | 1:91.6.1-1 | DEBIAN-CVE-2022-0566 |
| Debian:14 | thunderbird | 1:91.6.1-1 | DEBIAN-CVE-2022-0566 |
| Rocky Linux:8 | thunderbird | 0:91.7.0-2.el8_5 | RLSA-2022:0845 |
| Ubuntu:22.04:LTS | thunderbird | 1:91.6.1+build1-0ubuntu1 | UBUNTU-CVE-2022-0566 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | unspecified – before 91.6.1 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H