CVE-2008-4577

Publication date 15 October 2008

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The ACL plugin in Dovecot before 1.1.4 treats negative access rights as if they are positive access rights, which allows attackers to bypass intended access restrictions.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
dovecot	9.04 jaunty	Not affected
	8.10 intrepid	Not affected
	8.04 LTS hardy	Fixed 1:1.0.10-1ubuntu5.2
	7.10 gutsy	Ignored end of life, was needed
	6.06 LTS dapper	Not affected

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
dovecot	Other: http://hg.dovecot.org/dovecot-1.0/rev/2dc3a5678fe5

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVE-2008-4577

Cvss 3 Severity Score

Description

Status

Patch details

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references