Access Restriction Bypass Affecting dovecot package, versions [,1.2.15)[2.0.0,2.0.5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.42% (75th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-DOVECOT-2381740
  • published26 Jan 2022
  • disclosed6 Oct 2010
  • creditUnknown

Introduced: 6 Oct 2010

CVE-2010-3707  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade dovecot to version 1.2.15, 2.0.5 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving more specific entries that occur after less specific entries, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox.

References

CVSS Scores

version 3.1