What is CVE-2023-0616?

CVE-2023-0616 is a medium-severity vulnerability in Mozilla Thunderbird, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2023-06-02.

How severe is CVE-2023-0616?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Mozilla Thunderbird

CVE-2023-0616

If a MIME email combines OpenPGP and OpenPGP MIME data in a certain way Thunderbird repeatedly attempts to process and display the message, which could cause Thunderbird's user interface to lock up and no longer respond to the user's actions. An attacker could send a crafted message with this structure to attempt a DoS attack. This vulnerability affects Thunderbird < 102.8.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.005 (39.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Mozilla Thunderbird — versions unspecified

Weakness classification (CWE)

References

security@mozilla.org (Vendor Advisory)
security@mozilla.org (Permissions Required, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2023-0616?: CVE-2023-0616 is a medium-severity vulnerability in Mozilla Thunderbird, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2023-06-02.
How severe is CVE-2023-0616?: Medium severity. CVSS v3 base score is 6.5 out of 10.