wireshark: Misuse of NULL pointer in MRDISC dissector
Published Dec 30, 2017
7.5
HIGHCVSS 3.0
EPSS 1.83%
Description
In Wireshark before 2.2.12, the MRDISC dissector misuses a NULL pointer and crashes. This was addressed in epan/dissectors/packet-mrdisc.c by validating an IPv4 address. This vulnerability is similar to CVE-2017-9343.
Affected products
No data.
Configuration 2
- 8.0
No data.
Red Hat Enterprise Linux 6
wireshark
Will not fix
Red Hat Enterprise Linux 7
wireshark
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | wireshark | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | wireshark | Will not fix | 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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/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 v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.83% (0.01830) | 78.08th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.76% (0.01765) | 75.08th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.70% (0.00702) | 70.35th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00143) | 51.65th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.14% (0.00143) | 49.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00181) | 53.60th | 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 | 1.25% (0.01247) | 30.57th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
References (9)
- https://access.redhat.com/security/cve/CVE-2017-17997 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299 x_refsource_MISCIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1530893 Issue Tracking
- https://code.wireshark.org/review/#/c/25063/ x_refsource_MISCIssue TrackingPatchVendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=80a695869c9aef2fb473d9361da068022be7cb50 x_refsource_MISC
- 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-2017-17997
- https://www.cve.org/CVERecord?id=CVE-2017-17997
- https://www.wireshark.org/security/wnpa-sec-2018-02.html x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-17997 | Vendor Advisory | |
| https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299 | x_refsource_MISCIssue TrackingPatchVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1530893 | Issue Tracking | |
| https://code.wireshark.org/review/#/c/25063/ | x_refsource_MISCIssue TrackingPatchVendor Advisory | |
| https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=80a695869c9aef2fb473d9361da068022be7cb50 | x_refsource_MISC | |
| 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-2017-17997 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-17997 | ||
| https://www.wireshark.org/security/wnpa-sec-2018-02.html | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.