wireshark: Heap buffer overflow in packet-lbmpdm.c:dissect_segment_ofstable() allows denial of service or possibly arbitrary code execution
Published Nov 29, 2018
7.5
HIGHCVSS 3.0
EPSS 4.15%
Description
In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could crash. In addition, a remote attacker could write arbitrary data to any memory locations before the packet-scoped memory. This was addressed in epan/dissectors/packet-lbmpdm.c by disallowing certain negative values.
Affected products
No data.
Configuration 1
Configuration 2
- 8.0
- 9.0
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
Red Hat statement
This issue did not affect the versions of wireshark as shipped with Red Hat Enterprise Linux 5, 6 and 7 as they did not include LBMPDM dissector where the vulnerability occurred.
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:R/S:U/C:H/I:H/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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.15% (0.04155) | 90.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.15% (0.04155) | 89.52th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.18% (0.02184) | 82.87th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.64% (0.04637) | 81.77th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.18% (0.02184) | 83.21th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.35% (0.00354) | 72.84th | v3 (v2023.03.01) |
| Apr 21, 2024 | 0.35% (0.00354) | 71.70th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.43% (0.00433) | 73.86th | v3 (v2023.03.01) |
| Nov 22, 2023 | 0.43% (0.00433) | 71.76th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.39% (0.00392) | 70.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.35% (0.00351) | 67.36th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.33% (0.02335) | 53.78th | v1 |
| Jan 6, 2022 | 2.33% (0.02335) | 53.32th | v1 |
| Sep 1, 2021 | 2.33% (0.02335) | 78.29th | v1 |
| Apr 14, 2021 | 2.33% (0.02335) | 0.00th | v1 |
References (12)
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/106051 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-19623 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15132 x_refsource_MISCExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1655933 Issue Tracking
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9c8645ec7b28e4d7193962ecd2a418613bf6a84f 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-2018-19623
- https://www.cve.org/CVERecord?id=CVE-2018-19623
- https://www.debian.org/security/2018/dsa-4359 vendor-advisoryx_refsource_DEBIANMailing ListThird Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2020.html x_refsource_MISC
- https://www.wireshark.org/security/wnpa-sec-2018-53.html x_refsource_MISCVendor Advisory
Change history (0)
No recorded changes yet.