Dovecot: Busy master process, receiving a lot of SIGCHLD signals rapidly while logging, could die
Published Oct 6, 2010
4.0
MEDIUMCVSS 2.0
EPSS 2.06%
Description
Dovecot 1.2.x before 1.2.15 allows remote authenticated users to cause a denial of service (master process outage) by simultaneously disconnecting many (1) IMAP or (2) POP3 sessions.
Affected products
No data.
- 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
No remediation recorded yet.
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:N/I:N/A:P
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.06% (0.02056) | 80.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.35% (0.02347) | 81.40th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.05% (0.01055) | 76.05th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.78% (0.00779) | 82.07th | v3 (v2023.03.01) |
| Feb 29, 2024 | 0.88% (0.00882) | 82.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.88% (0.00882) | 80.03th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.23% (0.01232) | 67.28th | v2 (v2022.01.01) |
| Dec 23, 2022 | 1.23% (0.01232) | 66.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.23% (0.01232) | 64.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.23% (0.01232) | 41.02th | v2 (v2022.01.01) |
No CWE recorded.
References (11)
- 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.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/2010/2840 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2011/0301 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2010-3780 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=641276 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2010-3780
- https://www.cve.org/CVERecord?id=CVE-2010-3780
| Link | Providers | Tags |
|---|---|---|
| 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.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/2010/2840 | vdb-entryx_refsource_VUPEN | |
| http://www.vupen.com/english/advisories/2011/0301 | vdb-entryx_refsource_VUPEN | |
| https://access.redhat.com/security/cve/CVE-2010-3780 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=641276 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-3780 | ||
| https://www.cve.org/CVERecord?id=CVE-2010-3780 |
Change history (0)
No recorded changes yet.