HIGH
wireshark: Kerberos dissector crash in epan/dissectors/packet-kerberos.c
Published Apr 4, 2018
7.5
HIGHCVSS 3.0
EPSS 2.48%
Description
In Wireshark 2.4.0 to 2.4.5 and 2.2.0 to 2.2.13, the Kerberos dissector could crash. This was addressed in epan/dissectors/packet-kerberos.c by ensuring a nonzero key length.
Affected products
No data.
Configuration 1
Configuration 2
OR
- 7.0
- 8.0
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.
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
1 other source (Red Hat) ▾
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.
2.48% 0.02481
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02481
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.48% (0.02481) | 84.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.57% (0.02568) | 83.06th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.70% (0.00700) | 70.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00242) | 64.83th | v3 (v2023.03.01) |
| Apr 19, 2024 | 0.24% (0.00242) | 64.02th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.24% (0.00242) | 62.02th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.21% (0.00215) | 58.45th | v3 (v2023.03.01) |
| Mar 29, 2023 | 0.24% (0.00236) | 59.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.28% (0.00281) | 63.48th | 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 | 1.25% (0.01247) | 30.57th | v1 |
| Jan 6, 2022 | 1.25% (0.01247) | 29.93th | v1 |
| Sep 1, 2021 | 1.25% (0.01247) | 68.62th | v1 |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
Weaknesses (1)
References (9)
- https://access.redhat.com/security/cve/CVE-2018-9263 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14576 x_refsource_MISCExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1565749 Issue Tracking
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=4fe65168fd0de81306710330aa414f10f53cbdf0 x_refsource_MISC
- https://lists.debian.org/debian-lts-announce/2018/05/msg00019.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://nvd.nist.gov/vuln/detail/CVE-2018-9263
- https://www.cve.org/CVERecord?id=CVE-2018-9263
- https://www.wireshark.org/security/wnpa-sec-2018-23.html x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-9263 | Vendor Advisory | |
| https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14576 | x_refsource_MISCExploitIssue TrackingVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1565749 | Issue Tracking | |
| https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=4fe65168fd0de81306710330aa414f10f53cbdf0 | x_refsource_MISC | |
| https://lists.debian.org/debian-lts-announce/2018/05/msg00019.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://nvd.nist.gov/vuln/detail/CVE-2018-9263 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-9263 | ||
| https://www.wireshark.org/security/wnpa-sec-2018-23.html | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 4, 2018
Updated Aug 5, 2024
Reserved Apr 4, 2018
Link CVE-2018-9263
CISA Vulnrichment
Updated n/a