The ACL plugin in Dovecot before 1.1.4 treats negative access rights as if they are…
Priority LOW 37CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-863.
Summary
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.
Why it matters now
EPSS 0.02328 83rd percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:* | before 1.1.4 | Vulnerable | The Dovecot Project |
| cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:* | 8 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:9:*:*:*:*:*:*:* | 9 | Vulnerable | Fedoraproject |
| cpe:2.3:o:opensuse:opensuse:10.3-11.1:*:*:*:*:*:*:* | 10.3-11.1 | Vulnerable | openSUSE |
| cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* | 8.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* | 8.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:* | 9.04 | Vulnerable | Canonical |
- cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:* Versions before 1.1.4 Vulnerable ·The Dovecot Project
- cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:* Versions 8 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·Fedoraproject
- cpe:2.3:o:opensuse:opensuse:10.3-11.1:*:*:*:*:*:*:* Versions 10.3-11.1 Vulnerable ·openSUSE
- cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* Versions 8.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* Versions 8.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:* Versions 9.04 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2009:0205 Released 2009-01-20 · Red Hat rating Lowdovecot security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) dovecot-1.0.7-7.el5, dovecot-1.0.7-7.el5.i386, dovecot-1.0.7-7.el5.ia64 +1
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) dovecot-1.0.7-7.el5, dovecot-1.0.7-7.el5.i386
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2009:0205 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2009:0205 |
Timeline
- 2026-10-02 Threatist record created from CVE-2008-4577
- 2026-10-03 Alias added: GHSA-24jq-h48j-g592
References
Sources
- CVE-2008-4577 · CVE Program
- CVE-2008-4577 · NVD
- FIRST EPSS
- GHSA-24jq-h48j-g592 · GitHub Advisory Database · CC BY 4.0
- CVE-2008-4577 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences