wireshark: ASN.1 BER and related dissectors crash (wnpa-sec-2018-37)
Published Jul 19, 2018
7.5
HIGHCVSS 3.0
EPSS 3.31%
Description
In Wireshark 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15, the ASN.1 BER dissector could crash. This was addressed in epan/dissectors/packet-ber.c by ensuring that length values do not exceed the maximum signed integer.
Affected products
No data.
No data.
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 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 6 and 7 (versions 1.8.10 and 1.10.14, respectively).
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 2, 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 (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.31% (0.03309) | 88.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.35% (0.03352) | 87.08th | v5 (v2026.06.15) |
| Nov 21, 2025 | 0.58% (0.00583) | 68.11th | v4 (v2025.03.14) |
| Nov 18, 2025 | 2.02% (0.02017) | 82.29th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.85% (0.00854) | 73.35th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.37% (0.00371) | 73.50th | v3 (v2023.03.01) |
| May 3, 2024 | 0.37% (0.00371) | 72.51th | v3 (v2023.03.01) |
| Mar 7, 2024 | 0.39% (0.00389) | 72.70th | v3 (v2023.03.01) |
| Feb 12, 2024 | 0.51% (0.00508) | 75.85th | v3 (v2023.03.01) |
| Jan 18, 2024 | 0.47% (0.00474) | 73.13th | v3 (v2023.03.01) |
| Dec 9, 2023 | 0.41% (0.00408) | 70.93th | v3 (v2023.03.01) |
| Nov 17, 2023 | 0.36% (0.00360) | 69.17th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.25% (0.00254) | 62.99th | v3 (v2023.03.01) |
| Jul 12, 2023 | 0.19% (0.00186) | 54.88th | v3 (v2023.03.01) |
| May 8, 2023 | 0.14% (0.00143) | 48.59th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00188) | 54.47th | 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 |
References (11)
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/104847 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041608 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-14343 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14682 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1607324 Issue Tracking
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9402f2f80c6bc7d25178a0875c5a1f5ee36361db x_refsource_CONFIRM
- https://lists.debian.org/debian-lts-announce/2018/07/msg00045.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-14343
- https://www.cve.org/CVERecord?id=CVE-2018-14343
- https://www.wireshark.org/security/wnpa-sec-2018-37.html x_refsource_CONFIRMVendor Advisory
Change history (0)
No recorded changes yet.