tcpdump: buffer over-read in function print_prefix in print-hncp.c
Published Jul 22, 2019
5.4
MEDIUMCVSS 3.0
EPSS 1.35%
Description
tcpdump.org tcpdump 4.9.2 is affected by: CWE-126: Buffer Over-read. The impact is: May expose Saved Frame Pointer, Return Address etc. on stack. The component is: line 234: "ND_PRINT((ndo, "%s", buf));", in function named "print_prefix", in "print-hncp.c". The attack vector is: The victim must open a specially crafted pcap file.
Affected products
-
- Version 4.9.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Tcpdump.org | Tcpdump | n/a |
|
No data.
Red Hat Enterprise Linux 5
tcpdump
Not affected
Red Hat Enterprise Linux 6
tcpdump
Not affected
Red Hat Enterprise Linux 7
tcpdump
Not affected
Red Hat Enterprise Linux 8
tcpdump
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | tcpdump | Not affected | n/a |
| Red Hat Enterprise Linux 6 | tcpdump | Not affected | n/a |
| Red Hat Enterprise Linux 7 | tcpdump | Not affected | n/a |
| Red Hat Enterprise Linux 8 | tcpdump | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw was found to be a duplicate of CVE-2018-19519. Please see https://access.redhat.com/security/cve/CVE-2018-19519 for information about affected products and security errata.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
AV:N/AC:M/Au:N/C:P/I:N/A:N
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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.35% (0.01348) | 70.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.35% (0.01348) | 67.71th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.32% (0.00316) | 52.51th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00147) | 52.18th | v3 (v2023.03.01) |
| Jul 15, 2024 | 0.19% (0.00191) | 56.87th | v3 (v2023.03.01) |
| May 11, 2023 | 0.08% (0.00083) | 33.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00070) | 28.34th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.13% (0.05132) | 75.07th | v2 (v2022.01.01) |
| Feb 3, 2022 | 10.22% (0.10225) | 87.52th | v1 |
| Jan 6, 2022 | 10.22% (0.10225) | 87.37th | v1 |
| Sep 1, 2021 | 2.48% (0.02476) | 78.74th | v1 |
| Apr 14, 2021 | 2.48% (0.02476) | 0.00th | v1 |
References (15)
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00065.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00050.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00053.html vendor-advisoryx_refsource_SUSE
- https://access.redhat.com/security/cve/CVE-2019-1010220 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1735549 Issue Tracking
- https://github.com/the-tcpdump-group/tcpdump/blob/master/print-hncp.c x_refsource_MISCPatchThird Party Advisory
- https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9.2/print-hncp.c x_refsource_MISCPatchThird Party Advisory
- https://github.com/the-tcpdump-group/tcpdump/commits/master/print-hncp.c x_refsource_MISCPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2019-1010220
- https://usn.ubuntu.com/4252-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4252-2/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2019-1010220
Change history (0)
No recorded changes yet.