CVE-2021-38084: 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…

PriorityP344high8.1CVSS 3.1

AVNACHPRNUINSUCHIHAH

EPSS

1.36%

68.2th percentile

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.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
courier-mta	courier_mail_server	< 1.1.5	1.1.5
courier-mta	courier_mail_server	>= 0 < 1.3.13-1	1.3.13-1
courier-mta	courier_mail_server	>= 0 < 1.3.13-1	1.3.13-1
debian	courier	< courier 1.3.13-1 (forky)	courier 1.3.13-1 (forky)

CVSS provenance

nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

osv8.1HIGH

vendor_debian8.1HIGH

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