modules/m_capab.c in (1) ircd-ratbox before 3.0.8 and (2) Charybdis before 3.4.2 does not properly support capability negotiation during server handshakes, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed request
Published Jan 1, 2013
5.0
MEDIUMCVSS 2.0
EPSS 3.05%
Description
modules/m_capab.c in (1) ircd-ratbox before 3.0.8 and (2) Charybdis before 3.4.2 does not properly support capability negotiation during server handshakes, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed request.
Affected products
No data.
- 1.0
- 1.1.1
- 1.1.2
- 1.2.1
- 1.2.2
- 1.2.3
- 1.3
- 1.3.1
- 1.3.2
- 1.4
- 1.4
- 1.4
- 1.5
- 1.5.1
- 1.5.2
- 1.5.3
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
- 2.0.7
- 2.0.8
- 2.0.9
- 2.0.10
- 2.0.11
- 2.1.0
- 2.1.0
- 2.1.1
- 2.1.2
- 2.1.3
- 2.1.4
- 2.1.5
- 2.1.6
- 2.1.7
- 2.1.8
- 2.2.0
- 2.2.0
- 2.2.0
- 2.2.0
- 2.2.1
- 2.2.2
- 2.2.3
- 2.2.4
- 2.2.5
- 2.2.6
- 2.2.7
- 2.2.7.1
- 2.2.8
- 2.2.9
- ≤ 3.0.7
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: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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.05% (0.03049) | 87.09th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.05% (0.03049) | 85.79th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.49% (0.00492) | 63.59th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.11% (0.03110) | 91.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.11% (0.03110) | 89.53th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
No CWE recorded.
References (6)
- http://openwall.com/lists/oss-security/2013/01/01/4 mailing-listx_refsource_MLISTPatch
- http://rabbit.dereferenced.org/~nenolod/ASA-2012-12-31.txt x_refsource_CONFIRM
- http://www.debian.org/security/2013/dsa-2612 vendor-advisoryx_refsource_DEBIAN
- http://www.ratbox.org/download/ircd-ratbox-3.0.8.tar.bz2 x_refsource_CONFIRMPatch
- http://www.stack.nl/~jilles/irc/charybdis-3.4.2.tbz2 x_refsource_CONFIRMPatch
- https://github.com/atheme/charybdis/commit/ac0707aa61d9c20e9b09062294701567c9f41595.patch x_refsource_CONFIRMPatch
| Link | Providers | Tags |
|---|---|---|
| http://openwall.com/lists/oss-security/2013/01/01/4 | mailing-listx_refsource_MLISTPatch | |
| http://rabbit.dereferenced.org/~nenolod/ASA-2012-12-31.txt | x_refsource_CONFIRM | |
| http://www.debian.org/security/2013/dsa-2612 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.ratbox.org/download/ircd-ratbox-3.0.8.tar.bz2 | x_refsource_CONFIRMPatch | |
| http://www.stack.nl/~jilles/irc/charybdis-3.4.2.tbz2 | x_refsource_CONFIRMPatch | |
| https://github.com/atheme/charybdis/commit/ac0707aa61d9c20e9b09062294701567c9f41595.patch | x_refsource_CONFIRMPatch |
Change history (0)
No recorded changes yet.