CVE-2022-0566 Memory corruption in Thunderbird
An attacker can trigger an out-of-bounds write in Thunderbird via a crafted email, potentially leading to arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-0566?
CVE-2022-0566 is a high-severity memory corruption vulnerability in Mozilla Thunderbird, published on 22 Dec 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Weakness: CWE-787
Which versions are affected by CVE-2022-0566?
It affects 1 product.
Linux distribution packages (1)
MozillaThunderbird openSUSE:Tumbleweed | All versions | 91.6.1-1.1 |
Products include Mozilla Thunderbird.
How do I fix CVE-2022-0566?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-0566 being exploited?
There is no known exploitation of CVE-2022-0566 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Thunderbird
Sources
Also known as DEBIAN-CVE-2022-0566, DLA-2930-1, DSA-5086-1, GHSA-3jgp-624h-phx4, MGASA-2022-0072, UBUNTU-CVE-2022-0566 and 1 more.