NULL pointer dereference in Mozilla Thunderbird
CVE-2020-6795
When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.
EPSS: 0.013 (67.6th 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)
Public proof-of-concept exploits
References
- security@mozilla.org (x_refsource_MISC, Vendor Advisory)
- security@mozilla.org (Permissions Required, x_refsource_MISC)
- security@mozilla.org (vendor-advisory, x_refsource_GENTOO)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory)
Frequently asked questions
- What is CVE-2020-6795?
- CVE-2020-6795 is a medium-severity vulnerability in Mozilla Thunderbird, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2020-03-02.
- How severe is CVE-2020-6795?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2020-6795 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.