CVE-2021-38084

Description

An issue was discovered in the POP3 component of Courier Mail Server before 1.1.5. Meddler-in-the-middle attackers can pipeline commands after the POP3 STLS command, injecting plaintext commands into an encrypted user session.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.51%
Third-Party Advisory sourceforge.net Third-Party Advisory sourceforge.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://sourceforge.net/p/courier/mailman/courier-imap/thread/cone.1382574216.483027.8082.1000%40monster.email-scan.com/#msg31555583 third party advisory
https://sourceforge.net/p/courier/mailman/message/37329216/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-38084?
CVE-2021-38084 has been scored as a high severity vulnerability.
How to fix CVE-2021-38084?
To fix CVE-2021-38084, 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-2021-38084 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-38084 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.
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