The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host
Published Dec 20, 2018
7.5
HIGHCVSS 3.0
EPSS 4.04%
Description
The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host.
Affected products
No data.
- < 1.11-1
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.04% (0.04044) | 90.31th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.04% (0.04044) | 89.27th | v5 (v2026.06.15) |
| Mar 30, 2025 | 4.78% (0.04779) | 88.44th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.07% (0.03074) | 77.81th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.78% (0.04779) | 88.73th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.13% (0.00131) | 49.65th | v3 (v2023.03.01) |
| May 12, 2024 | 0.34% (0.00338) | 71.20th | v3 (v2023.03.01) |
| Apr 4, 2024 | 0.57% (0.00567) | 77.40th | v3 (v2023.03.01) |
| Jan 1, 2024 | 0.57% (0.00567) | 75.39th | v3 (v2023.03.01) |
| Dec 14, 2023 | 1.14% (0.01135) | 83.05th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.23% (0.01233) | 83.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.29% (0.01294) | 30.79th | v1 |
| Jan 6, 2022 | 1.29% (0.01294) | 30.15th | v1 |
| Sep 1, 2021 | 1.29% (0.01294) | 69.02th | v1 |
| Apr 14, 2021 | 1.29% (0.01294) | 0.00th | v1 |
References (4)
- http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html x_refsource_MISCExploitPatchThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2018/Nov/65 mailing-listx_refsource_FULLDISCExploitMailing ListPatchThird Party Advisory
- https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1 x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/irsl/knc-memory-exhaustion/ x_refsource_MISCExploitPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html | x_refsource_MISCExploitPatchThird Party AdvisoryVDB Entry | |
| http://seclists.org/fulldisclosure/2018/Nov/65 | mailing-listx_refsource_FULLDISCExploitMailing ListPatchThird Party Advisory | |
| https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/irsl/knc-memory-exhaustion/ | x_refsource_MISCExploitPatchThird Party Advisory |
Change history (0)
No recorded changes yet.