Dovecot: Failed to properly update ACL cache, when multiple rules defined rights for one subject
Published Oct 6, 2010
5.5
MEDIUMCVSS 2.0
EPSS 2.34%
Description
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.
Affected products
No data.
Configuration 1
- 1.2.0
- 1.2.1
- 1.2.2
- 1.2.3
- 1.2.4
- 1.2.5
- 1.2.6
- 1.2.7
- 1.2.8
- 1.2.9
- 1.2.10
- 1.2.11
- 1.2.12
- 1.2.13
- 1.2.14
No data.
Red Hat Enterprise Linux 6
dovecot-1:2.0.9-2.el6
Fixed · RHSA-2011:0600
Red Hat Enterprise Linux 4
dovecot
Not affected
Red Hat Enterprise Linux 5
dovecot
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | dovecot-1:2.0.9-2.el6 | Fixed | RHSA-2011:0600 |
| Red Hat Enterprise Linux 4 | dovecot | Not affected | n/a |
| Red Hat Enterprise Linux 5 | dovecot | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of dovecot package, as shipped with Red Hat Enterprise Linux 4 and 5. This issue affects the version of dovecot package as shipped with Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.34% (0.02337) | 82.97th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.67% (0.02667) | 83.73th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.19% (0.00192) | 39.09th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.21% (0.00206) | 59.45th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.23% (0.00233) | 61.59th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.23% (0.00233) | 59.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.19% (0.02186) | 80.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.19% (0.02186) | 79.16th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.19% (0.02186) | 57.93th | v2 (v2022.01.01) |
References (17)
- http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=oss-security&m=128620520732377&w=2 mailing-listx_refsource_MLIST
- http://marc.info/?l=oss-security&m=128622064325688&w=2 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/43220 third-party-advisoryx_refsource_SECUNIA
- http://www.dovecot.org/list/dovecot/2010-October/053450.html mailing-listx_refsource_MLISTVendor Advisory
- http://www.dovecot.org/list/dovecot/2010-October/053451.html mailing-listx_refsource_MLISTVendor Advisory
- http://www.dovecot.org/list/dovecot/2010-October/053452.html mailing-listx_refsource_MLISTVendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:217 vendor-advisoryx_refsource_MANDRIVA
- http://www.redhat.com/support/errata/RHSA-2011-0600.html vendor-advisoryx_refsource_REDHAT
- http://www.ubuntu.com/usn/USN-1059-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2010/2572 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2010/2840 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2011/0301 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2010-3707 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=640410 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2010-3707
- https://www.cve.org/CVERecord?id=CVE-2010-3707
Change history (0)
No recorded changes yet.