HIGH
wireshark: CoAP dissector crash
Published Oct 12, 2018
7.5
HIGHCVSS 3.1
EPSS 2.88%
Description
In Wireshark 2.6.0 to 2.6.3, the CoAP dissector could crash. This was addressed in epan/dissectors/packet-coap.c by ensuring that the piv length is correctly computed.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
wireshark
Not affected
Red Hat Enterprise Linux 6
wireshark
Not affected
Red Hat Enterprise Linux 7
wireshark
Not affected
Red Hat Enterprise Linux 8
wireshark
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | wireshark | Not affected | n/a |
| Red Hat Enterprise Linux 6 | wireshark | Not affected | n/a |
| Red Hat Enterprise Linux 7 | wireshark | Not affected | n/a |
| Red Hat Enterprise Linux 8 | wireshark | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.5 HIGH NVD
CVSS:3.1/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
5.3 MEDIUM Red Hat
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
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.
2.88% 0.02884
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02884
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 (26 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.88% (0.02884) | 86.38th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.88% (0.02884) | 85.00th | v5 (v2026.06.15) |
| May 27, 2026 | 2.40% (0.02398) | 85.26th | v4 (v2025.03.14) |
| Nov 21, 2025 | 1.18% (0.01179) | 78.13th | v4 (v2025.03.14) |
| Nov 18, 2025 | 2.49% (0.02494) | 84.01th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.25% (0.01249) | 77.48th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.49% (0.02491) | 75.51th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.25% (0.01249) | 77.95th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.38% (0.00377) | 73.69th | v3 (v2023.03.01) |
| May 31, 2024 | 0.53% (0.00535) | 77.14th | v3 (v2023.03.01) |
| Apr 13, 2024 | 0.70% (0.00698) | 79.97th | v3 (v2023.03.01) |
| Mar 4, 2024 | 0.60% (0.00602) | 77.94th | v3 (v2023.03.01) |
| Feb 13, 2024 | 0.53% (0.00532) | 76.40th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.53% (0.00532) | 74.40th | v3 (v2023.03.01) |
| Oct 6, 2023 | 0.38% (0.00375) | 69.57th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.31% (0.00313) | 66.07th | v3 (v2023.03.01) |
| Mar 10, 2023 | 0.21% (0.00205) | 56.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.21% (0.00215) | 57.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | 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 | v1 |
| Jan 6, 2022 | 1.66% (0.01659) | 33.50th | v1 |
| Sep 1, 2021 | 1.66% (0.01659) | 73.96th | v1 |
| Apr 14, 2021 | 1.66% (0.01659) | 0.00th | v1 |
Weaknesses (2)
References (12)
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://www.securityfocus.com/bid/105583 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041909 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-18225 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15172 x_refsource_MISCIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1642913 Issue Tracking
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=b2bbd9fdf209911d94b23cc33f4daccbceb7fa8a x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2018-18225
- https://www.cve.org/CVERecord?id=CVE-2018-18225
- https://www.debian.org/security/2018/dsa-4359 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2018-49
- https://www.wireshark.org/security/wnpa-sec-2018-49.html x_refsource_MISCVendor Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Oct 12, 2018
Updated Aug 5, 2024
Reserved Oct 10, 2018
Link CVE-2018-18225
CISA Vulnrichment
Updated n/a