HIGH
In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, epan/dissectors/packet-wccp.c had a large loop that was addressed by ensuring that a calculated length was monotonically increasing
Published Feb 23, 2018
7.5
HIGHCVSS 3.0
EPSS 2.46%
Description
In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, epan/dissectors/packet-wccp.c had a large loop that was addressed by ensuring that a calculated length was monotonically increasing.
Affected products
No data.
Configuration 1
Configuration 2
OR
- 7.0
- 8.0
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.46% 0.02455
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02455
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 | 2.46% (0.02455) | 83.83th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.52% (0.02524) | 82.75th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.54% (0.00538) | 65.55th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00237) | 62.63th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.24% (0.00237) | 61.57th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.17% (0.00173) | 53.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00183) | 53.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.66% (0.01659) | 34.20th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.66% (0.01659) | 0.00th | v1 |
Weaknesses (1)
References (7)
- http://www.securityfocus.com/bid/103158 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14412 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=4f9199ea8cff56c6704e9828c3d80360b27c4565 x_refsource_CONFIRM
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=5d45b69b590cabc5127282d1ade3bca1598e5f5c x_refsource_CONFIRM
- https://lists.debian.org/debian-lts-announce/2018/04/msg00018.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2018-06.html x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/103158 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14412 | x_refsource_CONFIRMIssue TrackingVendor Advisory | |
| https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=4f9199ea8cff56c6704e9828c3d80360b27c4565 | x_refsource_CONFIRM | |
| https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=5d45b69b590cabc5127282d1ade3bca1598e5f5c | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2018/04/msg00018.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://www.wireshark.org/security/wnpa-sec-2018-06.html | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 23, 2018
Updated Aug 5, 2024
Reserved Feb 22, 2018
Link CVE-2018-7323
CISA Vulnrichment
Updated n/a