A heap-based buffer over-read was discovered in the tcpreplay-edit binary of Tcpreplay 4.3.0 beta1, during the incremental checksum operation
Published Oct 17, 2018
5.5
MEDIUMCVSS 3.0
EPSS 1.24%
Description
A heap-based buffer over-read was discovered in the tcpreplay-edit binary of Tcpreplay 4.3.0 beta1, during the incremental checksum operation. The issue gets triggered in the function csum_replace4() in incremental_checksum.h, causing a denial of service.
Affected products
No data.
Configuration 2
- 28
- 29
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:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.24% (0.01239) | 68.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.24% (0.01239) | 65.14th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.21% (0.00212) | 41.78th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00141) | 51.32th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.14% (0.00141) | 49.61th | v3 (v2023.03.01) |
| Oct 11, 2023 | 0.08% (0.00082) | 34.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00069) | 28.06th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | 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 | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.29% (0.01294) | 0.00th | v1 |
References (4)
- https://github.com/SegfaultMasters/covering360/blob/master/tcpreplay/README.md#user-content-heap-overflow-in-csum_replace4 x_refsource_MISCExploitThird Party Advisory
- https://github.com/appneta/tcpreplay/issues/488 x_refsource_MISCExploitPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4V3SADKXUSHWTVAPU3WLXBDEQUHRA6ZO/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLPY6W7Z7G6PF2JN4LXXHCACYLD4RBG6/ vendor-advisoryx_refsource_FEDORA
| Link | Providers | Tags |
|---|---|---|
| https://github.com/SegfaultMasters/covering360/blob/master/tcpreplay/README.md#user-content-heap-overflow-in-csum_replace4 | x_refsource_MISCExploitThird Party Advisory | |
| https://github.com/appneta/tcpreplay/issues/488 | x_refsource_MISCExploitPatchThird Party Advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4V3SADKXUSHWTVAPU3WLXBDEQUHRA6ZO/ | vendor-advisoryx_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLPY6W7Z7G6PF2JN4LXXHCACYLD4RBG6/ | vendor-advisoryx_refsource_FEDORA |
Change history (0)
No recorded changes yet.