CVE-2020-6795

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.69% Top 30%
Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory mozilla.org
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2020-07/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1611105 permissions required
https://security.gentoo.org/glsa/202003-10 vendor advisory
https://usn.ubuntu.com/4328-1/ vendor advisory
https://usn.ubuntu.com/4335-1/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-6795?
CVE-2020-6795 has been scored as a medium severity vulnerability.
How to fix CVE-2020-6795?
To fix CVE-2020-6795, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-6795 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-6795 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-6795?
CVE-2020-6795 affects Mozilla Thunderbird.
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