Description
The DECnet parser in tcpdump before 4.9.2 has a buffer over-read in print-decnet.c:decnet_print().
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tcpdump | 4.9.2-1 | — |
| Debian 13 | tcpdump | 4.9.2-1 | — |
| Debian 12 | tcpdump | 4.9.2-1 | — |
| Debian 9 | tcpdump | 4.9.2-1~deb9u1 | DSA-3971-1 |
| Debian 8 | tcpdump | 4.9.2-1~deb8u1 | DSA-3971-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | tcpdump | 4.9.2-1~deb7u1 | DLA-1097-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | tcpdump | 4.9.2-0ubuntu0.16.04.1 | USN-3415-1 |
| Ubuntu 14.04 LTS | tcpdump | 4.9.2-0ubuntu0.14.04.1 | USN-3415-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | tcpdump | 14:4.9.2-3.el7 | RHEA-2018:0705 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | tcpdump | 4.9.2-14.5.1 | SUSE-SU-2017:2854-1 |
| SLES 12 SP2 | tcpdump | 4.9.2-14.5.1 | SUSE-SU-2017:2854-1 |
| SLES 11 SP4 | tcpdump | 3.9.8-1.30.13.1 | SUSE-SU-2019:14191-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | tcpdump | 4.9.2-14.5.1 | SUSE-SU-2017:2854-1 |
| SLES for SAP 12 SP2 | tcpdump | 4.9.2-14.5.1 | SUSE-SU-2017:2854-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | tcpdump | 3.9.8-1.30.13.1 | SUSE-SU-2019:14191-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tcpdump | 4.99.1-1.2 | openSUSE-SU-2024:11425-1 |
Advisories 8
- RHEA-2018:0705 Red Hat Enhancement Advisory: tcpdump bug fix and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-3971-1 tcpdump - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1097-1 tcpdump - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3415-1 tcpdump vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:2854-1 Security update for tcpdump SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:14191-1 Security update for tcpdump SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11425-1 tcpdump-4.99.1-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-0370 Apple Mac OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 13, 2025
References
- GLSA-201709-23 vendor-advisory
- https://support.apple.com/HT208221
- DSA-3971 vendor-advisory
- https://github.com/the-tcpdump-group/tcpdump/commit/c6e0531b5def26ecf912e8de6ade86cbdaed3751
- 1039307 vdb-entry
- https://github.com/the-tcpdump-group/tcpdump/commit/f96003b21e2abfbba59b926b10a7f9bc7d11e36c
- http://www.tcpdump.org/tcpdump-changes.txt
- RHEA-2018:0705 vendor-advisory