wireshark: TShark reassembly crash (wnpa-sec-2016-20)
Published Apr 25, 2016
5.9
MEDIUMCVSS 3.0
EPSS 2.00%
Description
epan/reassemble.c in TShark in Wireshark 2.0.x before 2.0.3 relies on incorrect special-case handling of truncated Tvb data structures, which allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted packet.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
wireshark
Will not fix
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 5 | wireshark | Will not fix | n/a |
| 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:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:M/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.00% (0.02005) | 80.05th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.00% (0.02005) | 78.15th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.16% (0.00164) | 34.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.82% (0.00817) | 82.54th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.82% (0.00817) | 81.26th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.82% (0.00817) | 79.20th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
No CWE recorded.
References (10)
- http://www.securitytracker.com/id/1035685 vdb-entryx_refsource_SECTRACK
- http://www.wireshark.org/security/wnpa-sec-2016-20.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2016-4077 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11799 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1330067 Issue Tracking
- https://code.google.com/p/google-security-research/issues/detail?id=651 x_refsource_MISCExploit
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=c5b2c1e8f40cee913bd70fcc00284483b3c92fcd x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2016-4077
- https://www.cve.org/CVERecord?id=CVE-2016-4077
- https://www.wireshark.org/security/wnpa-sec-2016-20.html
| Link | Providers | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1035685 | vdb-entryx_refsource_SECTRACK | |
| http://www.wireshark.org/security/wnpa-sec-2016-20.html | x_refsource_CONFIRMVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-4077 | Vendor Advisory | |
| https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11799 | x_refsource_CONFIRM | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1330067 | Issue Tracking | |
| https://code.google.com/p/google-security-research/issues/detail?id=651 | x_refsource_MISCExploit | |
| https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=c5b2c1e8f40cee913bd70fcc00284483b3c92fcd | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-4077 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-4077 | ||
| https://www.wireshark.org/security/wnpa-sec-2016-20.html |
Change history (0)
No recorded changes yet.