CVE catalog
CVE-2018-19519
tcpdump: CVE-2018-19519
- Severity
- Medium · CVSS 5.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.59% · Oct 25, 2026
In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | tcpdump | sid | 4.99.6-2 | vulnerable |
| Debian | tcpdump | forky | 4.99.6-2 | vulnerable |
| Debian | tcpdump | trixie | 4.99.5-2 | vulnerable |
| Debian | tcpdump | bookworm | 4.99.3-1 | vulnerable |
| Suse | tcpdump | linux enterprise module for basesystem 15 | 4.9.2-3.3.1 | fixed |
| Ubuntu | tcpdump | pro | 4.4.0-1ubuntu1 | vulnerable |
| Ubuntu | tcpdump | pro | 4.5.1-2ubuntu1 | vulnerable |
| Ubuntu | tcpdump | pro | 4.5.1-2ubuntu1.1 | vulnerable |
| Ubuntu | tcpdump | pro | 4.5.1-2ubuntu1.2 | vulnerable |
| Ubuntu | tcpdump | pro | 4.9.0-1ubuntu1~ubuntu14.04.1 | vulnerable |
| Ubuntu | tcpdump | pro | 4.9.2-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | tcpdump | pro | 4.9.3-0ubuntu0.14.04.1+esm1 | fixed |
| Ubuntu | tcpdump | 16.04 | 4.7.4-1ubuntu1 | vulnerable |
| Ubuntu | tcpdump | 16.04 | 4.9.0-1ubuntu1~ubuntu16.04.1 | vulnerable |
| Ubuntu | tcpdump | 16.04 | 4.9.2-0ubuntu0.16.04.1 | vulnerable |
| Ubuntu | tcpdump | 16.04 | 4.9.3-0ubuntu0.16.04.1 | fixed |
| Ubuntu | tcpdump | 18.04 | 4.9.2-1 | vulnerable |
| Ubuntu | tcpdump | 18.04 | 4.9.2-2 | vulnerable |
| Ubuntu | tcpdump | 18.04 | 4.9.2-2build1 | vulnerable |
| Ubuntu | tcpdump | 18.04 | 4.9.2-2ubuntu1 | vulnerable |
| Ubuntu | tcpdump | 18.04 | 4.9.2-3 | vulnerable |
| Ubuntu | tcpdump | 18.04 | 4.9.3-0ubuntu0.18.04.1 | fixed |
| Suse | tcpdump | linux enterprise desktop 12 sp3 | 4.9.2-14.8.1 | fixed |
| Suse | tcpdump | linux enterprise desktop 12 sp4 | 4.9.2-14.8.1 | fixed |
| Suse | tcpdump | linux enterprise server 12 sp3 | 4.9.2-14.8.1 | fixed |
| Suse | tcpdump | linux enterprise server for sap applications 12 sp3 | 4.9.2-14.8.1 | fixed |
| Suse | tcpdump | linux enterprise server 12 sp4 | 4.9.2-14.8.1 | fixed |
| Suse | tcpdump | linux enterprise server for sap applications 12 sp4 | 4.9.2-14.8.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tcpdump | source | sid | (unfixed) | unimportant | Not reported | Not reported |
| Debian | tcpdump | source | forky | (unfixed) | unimportant | Not reported | Not reported |
| Debian | tcpdump | source | trixie | (unfixed) | unimportant | Not reported | Not reported |
| Debian | tcpdump | source | bookworm | (unfixed) | unimportant | Not reported | Not reported |
| Suse | tcpdump | rpm | linux enterprise module for basesystem 15 | 4.9.2-3.3.1 | Not reported | SUSE-SU-2018:4131-1 | Not reported |
| Ubuntu | tcpdump | deb | pro | 4.9.3-0ubuntu0.14.04.1+esm1 | Not reported | UBUNTU-CVE-2018-19519 | Not reported |
| Ubuntu | tcpdump | deb | 16.04 | 4.9.3-0ubuntu0.16.04.1 | Not reported | UBUNTU-CVE-2018-19519 | Not reported |
| Ubuntu | tcpdump | deb | 18.04 | 4.9.3-0ubuntu0.18.04.1 | Not reported | UBUNTU-CVE-2018-19519 | Not reported |
| Suse | tcpdump | rpm | linux enterprise desktop 12 sp3 | 4.9.2-14.8.1 | Not reported | SUSE-SU-2018:4149-1 | Not reported |
| Suse | tcpdump | rpm | linux enterprise desktop 12 sp4 | 4.9.2-14.8.1 | Not reported | SUSE-SU-2018:4149-1 | Not reported |
| Suse | tcpdump | rpm | linux enterprise server 12 sp3 | 4.9.2-14.8.1 | Not reported | SUSE-SU-2018:4149-1 | Not reported |
| Suse | tcpdump | rpm | linux enterprise server for sap applications 12 sp3 | 4.9.2-14.8.1 | Not reported | SUSE-SU-2018:4149-1 | Not reported |
| Suse | tcpdump | rpm | linux enterprise server 12 sp4 | 4.9.2-14.8.1 | Not reported | SUSE-SU-2018:4149-1 | Not reported |
| Suse | tcpdump | rpm | linux enterprise server for sap applications 12 sp4 | 4.9.2-14.8.1 | Not reported | SUSE-SU-2018:4149-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [tcpdump]Affected
Details (2)
4.99.3-1· amd64 · bookwormAffected
dsa · tcpdump · debian · bookworm; dsa · tcpdump · debian · 12
4.99.3-1· arm64 · bookwormAffected
dsa · tcpdump · debian · bookworm; dsa · tcpdump · debian · 12
[Debian 13 (Trixie)]
- [tcpdump]Affected
Details (2)
4.99.5-2· amd64 · trixieAffected
dsa · tcpdump · debian · 13
4.99.5-2· arm64 · trixieAffected
dsa · tcpdump · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2020:1604]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2019_3976.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2018-19519]
- [https://osv.dev/vulnerability/SUSE-SU-2018:4131-1]
- [https://osv.dev/vulnerability/SUSE-SU-2018:4149-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2018-19519]
- [https://security-tracker.debian.org/tracker/CVE-2018-19519]
- [https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2026-4026.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]