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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.013 (69.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.mozilla.org/security/advisories/mfsa2020-07/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required)
- security.gentoo.org/glsa/202003-10 (vendor-advisory)
- usn.ubuntu.com/4328-1/ (vendor-advisory)
- usn.ubuntu.com/4335-1/ (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.