Description
The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The Tcpdump Group | tcpdump | 4.99.3 | — |
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 | 4.99.4-2 | — |
| Debian 13 | tcpdump | 4.99.4-2 | — |
| Debian 12 | tcpdump | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tcpdump | 4.99.4-1.1 | openSUSE-SU-2024:12850-1 |
Advisories 2
- openSUSE-SU-2024:12850-1 tcpdump-4.99.4-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0888 tcpdump: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · May 22, 2023
References
- https://github.com/the-tcpdump-group/tcpdump/commit/7578e1c04ee280dda50c4c2813e7d55f539c6501 patch
- https://github.com/the-tcpdump-group/tcpdump/commit/03c037bbd75588beba3ee09f26d17783d21e30bc patch
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KOA2BJFERAC3VRQIRHJOWN4HZY4ZA7CH/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYL5DEVHRJYF2CM5LTCZKEYFYDZAIZSN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLLZCG23MU6O4QOG2CX3DLEL3YXP6LAI/
- https://support.apple.com/kb/HT213844
- https://support.apple.com/kb/HT213845