wireshark: Multiple dissectors could crash (wnpa-sec-2018-36)
Published Jul 19, 2018
7.5
HIGHCVSS 3.0
EPSS 3.47%
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, dissectors that support zlib decompression could crash. This was addressed in epan/tvbuff_zlib.c by rejecting negative lengths to avoid a buffer over-read.
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
wireshark-0:1.10.14-24.el7
Fixed · RHSA-2020:1047
Red Hat Enterprise Linux 6
wireshark
Will not fix
Red Hat Enterprise Linux 8
wireshark
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | wireshark-0:1.10.14-24.el7 | Fixed | RHSA-2020:1047 |
| Red Hat Enterprise Linux 6 | wireshark | Will not fix | 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.
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.47% (0.03472) | 88.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.42% (0.03422) | 87.32th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.72% (0.00720) | 70.80th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.32% (0.00318) | 71.33th | v3 (v2023.03.01) |
| May 3, 2024 | 0.32% (0.00318) | 70.31th | v3 (v2023.03.01) |
| Mar 7, 2024 | 0.44% (0.00441) | 74.27th | v3 (v2023.03.01) |
| Feb 28, 2024 | 0.56% (0.00557) | 77.03th | v3 (v2023.03.01) |
| Dec 9, 2023 | 0.56% (0.00557) | 75.02th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.49% (0.00492) | 73.40th | v3 (v2023.03.01) |
| Jul 12, 2023 | 0.32% (0.00323) | 66.68th | v3 (v2023.03.01) |
| May 8, 2023 | 0.27% (0.00271) | 62.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.17% (0.00167) | 51.64th | 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-2018-14340 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14675 x_refsource_CONFIRMExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1607323 Issue Tracking
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=672d882a53f96730e4ef1e5b1639c585823b0df8 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-2018-14340
- https://www.cve.org/CVERecord?id=CVE-2018-14340
- https://www.wireshark.org/security/wnpa-sec-2018-36.html x_refsource_CONFIRMVendor Advisory
Change history (0)
No recorded changes yet.