dovecot: per-user DoS via message with malformed headers
Published Nov 4, 2008
4.3
MEDIUMCVSS 2.0
EPSS 6.20%
Description
The message parsing feature in Dovecot 1.1.4 and 1.1.5, when using the FETCH ENVELOPE command in the IMAP client, allows remote attackers to cause a denial of service (persistent crash) via an email with a malformed From address, which triggers an assertion error, aka "invalid message address parsing bug."
Affected products
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of the dovecot package, as shipped with Red Hat Enterprise Linux 4 or 5.
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:M/Au:N/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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.20% (0.06203) | 93.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.20% (0.06203) | 92.58th | v5 (v2026.06.15) |
| Mar 30, 2025 | 13.74% (0.13740) | 93.67th | v4 (v2025.03.14) |
| Mar 29, 2025 | 17.65% (0.17654) | 91.92th | v4 (v2025.03.14) |
| Mar 17, 2025 | 13.74% (0.13740) | 93.75th | v4 (v2025.03.14) |
| Dec 17, 2024 | 34.46% (0.34459) | 97.11th | v3 (v2023.03.01) |
| Jul 26, 2024 | 16.31% (0.16313) | 96.05th | v3 (v2023.03.01) |
| Jun 20, 2024 | 14.18% (0.14177) | 95.74th | v3 (v2023.03.01) |
| May 15, 2024 | 15.44% (0.15436) | 95.88th | v3 (v2023.03.01) |
| Mar 23, 2023 | 17.06% (0.17063) | 95.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 12.81% (0.12809) | 94.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.20% (0.07197) | 92.42th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.20% (0.07197) | 91.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.20% (0.07197) | 80.47th | v2 (v2022.01.01) |
References (12)
- http://secunia.com/advisories/32479 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://secunia.com/advisories/32677 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/33149 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200812-16.xml vendor-advisoryx_refsource_GENTOO
- http://www.dovecot.org/list/dovecot-news/2008-October/000089.html mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/31997 vdb-entryx_refsource_BIDPatch
- http://www.ubuntu.com/usn/usn-666-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2008-4907 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=469813 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/46227 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2008-4907
- https://www.cve.org/CVERecord?id=CVE-2008-4907
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/32479 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://secunia.com/advisories/32677 | third-party-advisoryx_refsource_SECUNIA | |
| http://secunia.com/advisories/33149 | third-party-advisoryx_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-200812-16.xml | vendor-advisoryx_refsource_GENTOO | |
| http://www.dovecot.org/list/dovecot-news/2008-October/000089.html | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/31997 | vdb-entryx_refsource_BIDPatch | |
| http://www.ubuntu.com/usn/usn-666-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2008-4907 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=469813 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/46227 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2008-4907 | ||
| https://www.cve.org/CVERecord?id=CVE-2008-4907 |
Change history (0)
No recorded changes yet.