CVE-2021-29948

Public Exploit

Description

Signatures are written to disk before and read during verification, which might be subject to a race condition when a malicious local process or user is replacing the file. This vulnerability affects Thunderbird < 78.10.

Category

2.5
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2021-14/ release notes vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1692899 exploit patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-29948?
CVE-2021-29948 has been scored as a low severity vulnerability.
How to fix CVE-2021-29948?
To fix CVE-2021-29948, 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-2021-29948 being actively exploited in the wild?
It is possible that CVE-2021-29948 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-29948?
CVE-2021-29948 affects Mozilla Thunderbird.
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