Off-by-one error in the mysasl_canon_user function in Cyrus IMAP Server 2.2.9 and earlier leads to a buffer overflow, which may allow remote attackers to execute arbitrary code via the username
Published Dec 10, 2004
10.0
HIGHCVSS 2.0
EPSS 5.18%
Description
Off-by-one error in the mysasl_canon_user function in Cyrus IMAP Server 2.2.9 and earlier leads to a buffer overflow, which may allow remote attackers to execute arbitrary code via the username.
Affected products
No data.
Configuration 1
- 1.4
- 1.5.19
- 2.0.12
- 2.0.16
- 2.1.7
- 2.1.9
- 2.1.10
- 2.1.16
- 2.2.0_alpha
- 2.2.1_beta
- 2.2.2_beta
- 2.2.3
- 2.2.4
- 2.2.5
- 2.2.6
- 2.2.7
- 2.2.8
- 2.2.9
Configuration 2
- core_2.0
- core_3.0
- 4.1
- 4.1
No data.
No Red Hat product state for this CVE.
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:N/C:C/I:C/A:C
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.18% (0.05178) | 92.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.18% (0.05178) | 91.35th | v5 (v2026.06.15) |
| Mar 30, 2025 | 5.48% (0.05476) | 89.23th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.13% (0.08129) | 86.69th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.48% (0.05476) | 89.49th | v4 (v2025.03.14) |
| Dec 25, 2024 | 4.85% (0.04848) | 92.66th | v3 (v2023.03.01) |
| Jun 17, 2024 | 3.53% (0.03530) | 91.61th | v3 (v2023.03.01) |
| Nov 17, 2023 | 3.48% (0.03476) | 90.48th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.74% (0.03743) | 90.38th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.52% (0.06523) | 91.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.52% (0.06523) | 90.53th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.52% (0.06523) | 78.43th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://asg.web.cmu.edu/cyrus/download/imapd/changes.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/11738 vdb-entryx_refsource_BIDPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/18333 vdb-entryx_refsource_XF
- https://www.ubuntu.com/usn/usn-37-1/ vendor-advisoryx_refsource_UBUNTU
| Link | Providers | Tags |
|---|---|---|
| http://asg.web.cmu.edu/cyrus/download/imapd/changes.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/11738 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/18333 | vdb-entryx_refsource_XF | |
| https://www.ubuntu.com/usn/usn-37-1/ | vendor-advisoryx_refsource_UBUNTU |
Change history (0)
No recorded changes yet.