Description
In Wireshark 2.4.0 to 2.4.5, the TCP dissector could crash. This was addressed in epan/dissectors/packet-tcp.c by preserving valid data sources.
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 | wireshark | 2.4.6-1 | — |
| Debian 13 | wireshark | 2.4.6-1 | — |
| Debian 12 | wireshark | 2.4.6-1 | — |
| Debian 8 | wireshark | 1.12.1+g01b65bf-4+deb8u16 | DLA-1634-1 |
| Debian 7 | wireshark | 1.12.1+g01b65bf-4+deb8u6~deb7u11 | DLA-1388-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | wireshark | 2.6.3-1~ubuntu18.04.1 | — |
| Ubuntu 16.04 LTS | wireshark | 2.6.3-1~ubuntu16.04.1 | — |
| Ubuntu 14.04 LTS | wireshark | 2.6.3-1~ubuntu14.04.1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wireshark | 3.4.8-1.2 | openSUSE-SU-2024:11513-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | wireshark | 2.4.6-r0 | — |
| Alpine v3.23 | wireshark | 2.4.6-r0 | — |
| Alpine v3.22 | wireshark | 2.4.6-r0 | — |
| Alpine v3.21 | wireshark | 2.4.6-r0 | — |
| Alpine v3.20 | wireshark | 2.4.6-r0 | — |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wireshark | 2.4.6-r0 | — |
| Alpine v3.18 | wireshark | 2.4.6-r0 | — |
| Alpine v3.17 | wireshark | 2.4.6-r0 | — |
| Alpine v3.16 | wireshark | 2.4.6-r0 | — |
| Alpine v3.15 | wireshark | 2.4.6-r0 | — |
| Alpine v3.14 | wireshark | 2.4.6-r0 | — |
| Alpine v3.13 | wireshark | 2.4.6-r0 | — |
| Alpine v3.12 | wireshark | 2.4.6-r0 | — |
| Alpine v3.11 | wireshark | 2.4.6-r0 | — |
| Alpine v3.10 | wireshark | 2.4.6-r0 | — |
| Alpine v3.9 | wireshark | 2.4.6-r0 | — |
| Alpine v3.8 | wireshark | 2.4.6-r0 | — |
| Alpine v3.7 | wireshark | 2.4.6-r0 | — |
| Alpine v3.5 | wireshark | 2.2.14-r0 | — |
Advisories 3
- DLA-1634-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1388-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:11513-1 libwireshark14-3.4.8-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=2d4695de1477df60b0188fd581c0c279db601978
- [debian-lts-announce] 20180528 [SECURITY] [DLA 1388-1] wireshark security update mailing-list
- https://www.wireshark.org/security/wnpa-sec-2018-21.html
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14472