CVE-2021-28374

HIGH
7.5
CVSS Score
Published: March 15, 2021 at 04:51 AM UTC
Updated: June 17, 2026 at 03:46 AM UTC
2 products affected across 1 vendorDebian LinuxCourier Authlib

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

The Debian courier-authlib package before 0.71.1-2 for Courier Authentication Library creates a /run/courier/authdaemon directory with weak permissions, allowing an attacker to read user information. This may include a cleartext password in some configurations. In general, it includes the user's existence, uid and gids, home and/or Maildir directory, quota, and some type of password information (such as a hash).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.71.1-2
Affected range stops below 0.71.1-2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCMailing ListVendor Advisory
https://bugs.debian.org/984810
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00011.html

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-732

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