wireshark: missing dissection recursion checks leads to denial of service
Published May 23, 2019
7.5
HIGHCVSS 3.1
EPSS 3.77%
Description
In Wireshark 3.0.0 to 3.0.1, 2.6.0 to 2.6.8, and 2.4.0 to 2.4.14, the dissection engine could crash. This was addressed in epan/packet.c by restricting the number of layers and consequently limiting recursion.
Affected products
No data.
Configuration 1
Configuration 2
- 9.0
Configuration 3
- 16.04
- 18.04
- 19.04
Configuration 4
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
- ≥ 12.1.3.6 · < 12.1.5.3
- ≥ 13.1.1.2 · < 13.1.3.5
- ≥ 14.0.0.3 · ≤ 14.0.1
- ≥ 14.1.0 · < 14.1.2.8
- ≥ 15.0.0 · ≤ 15.0.1
- 15.1.0
No data.
Red Hat Enterprise Linux 5
wireshark
Out of support scope
Red Hat Enterprise Linux 6
wireshark
Out of support scope
Red Hat Enterprise Linux 7
wireshark
Will not fix
Red Hat Enterprise Linux 8
wireshark
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | wireshark | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | wireshark | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | wireshark | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | wireshark | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
During testing we could not reproduce this issue (with a default stack size and the binaries as shipped in our products). It's possible that this issue only manifests itself when using binaries compiled with address sanitizer, which can dramatically increase stack usage. Yet, it also can't be entirely ruled out that there may be a way to exploit this using a method currently unknown to us, thus, this has an impact of Moderate.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
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 3, 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 (26 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 3.77% (0.03765) | 89.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.77% (0.03765) | 88.47th | v5 (v2026.06.15) |
| Jan 20, 2026 | 1.43% (0.01427) | 80.21th | v4 (v2025.03.14) |
| Nov 21, 2025 | 2.50% (0.02500) | 84.82th | v4 (v2025.03.14) |
| Nov 18, 2025 | 3.96% (0.03959) | 87.22th | v4 (v2025.03.14) |
| Jul 13, 2025 | 1.97% (0.01969) | 82.72th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.66% (0.00660) | 69.40th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.67% (0.00674) | 80.51th | v3 (v2023.03.01) |
| May 16, 2024 | 0.43% (0.00430) | 74.38th | v3 (v2023.03.01) |
| May 1, 2024 | 0.52% (0.00517) | 76.48th | v3 (v2023.03.01) |
| Apr 8, 2024 | 0.66% (0.00657) | 79.14th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.66% (0.00657) | 77.14th | v3 (v2023.03.01) |
| Sep 16, 2023 | 0.62% (0.00622) | 76.37th | v3 (v2023.03.01) |
| Apr 29, 2023 | 0.89% (0.00893) | 80.31th | v3 (v2023.03.01) |
| Apr 13, 2023 | 0.78% (0.00782) | 78.81th | v3 (v2023.03.01) |
| Mar 27, 2023 | 0.81% (0.00815) | 79.24th | v3 (v2023.03.01) |
| Mar 12, 2023 | 0.59% (0.00593) | 74.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.50% (0.00496) | 72.54th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 19.17% (0.19173) | 93.71th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.85% (0.07855) | 85.01th | v1 |
| Jan 6, 2022 | 7.85% (0.07855) | 84.84th | v1 |
| Sep 1, 2021 | 1.86% (0.01865) | 76.13th | v1 |
| Apr 14, 2021 | 1.86% (0.01865) | 0.00th | v1 |
References (12)
- http://www.securityfocus.com/bid/108464 vdb-entryx_refsource_BIDBroken Link
- https://access.redhat.com/security/cve/CVE-2019-12295 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15778 x_refsource_MISCIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1831675 Issue Tracking
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=7b6e197da4c497e229ed3ebf6952bae5c426a820 x_refsource_MISC
- https://lists.debian.org/debian-lts-announce/2020/10/msg00036.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-12295
- https://support.f5.com/csp/article/K06725231 x_refsource_CONFIRMThird Party Advisory
- https://support.f5.com/csp/article/K06725231?utm_source=f5support&%3Butm_medium=RSS x_refsource_CONFIRM
- https://usn.ubuntu.com/4133-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-12295
- https://www.wireshark.org/security/wnpa-sec-2019-19.html x_refsource_MISCVendor Advisory
Change history (0)
No recorded changes yet.