Description
In Wireshark 3.0.0 to 3.0.1, 2.6.0 to 2.6.8, and 2.4.0 to 2.4.14, the dissection engine could crash. This was addressed in epan/packet.c by restricting the number of layers and consequently limiting recursion.
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 | 2.6.8-1.1 | — |
| Debian 13 | wireshark | 2.6.8-1.1 | — |
| Debian 12 | wireshark | 2.6.8-1.1 | — |
| Debian 9 | wireshark | 2.6.8-1.1~deb9u1 | DLA-2547-1, DLA-2423-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | wireshark | 2.6.10-1~ubuntu18.04.0 | USN-4133-1 |
| Ubuntu 16.04 LTS | wireshark | 2.6.10-1~ubuntu16.04.0 | USN-4133-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | wireshark | 2.6.10-1~ubuntu14.04.0~esm1 | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | wireshark | 3.0.2-r0 | — |
| Alpine v3.23 | wireshark | 3.0.2-r0 | — |
| Alpine v3.22 | wireshark | 3.0.2-r0 | — |
| Alpine v3.21 | wireshark | 3.0.2-r0 | — |
| Alpine v3.20 | wireshark | 3.0.2-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wireshark | 3.0.2-r0 | — |
| Alpine v3.18 | wireshark | 3.0.2-r0 | — |
| Alpine v3.17 | wireshark | 3.0.2-r0 | — |
| Alpine v3.16 | wireshark | 3.0.2-r0 | — |
| Alpine v3.15 | wireshark | 3.0.2-r0 | — |
| Alpine v3.14 | wireshark | 3.0.2-r0 | — |
| Alpine v3.13 | wireshark | 3.0.2-r0 | — |
| Alpine v3.12 | wireshark | 3.0.2-r0 | — |
| Alpine v3.11 | wireshark | 3.0.2-r0 | — |
| Alpine v3.10 | wireshark | 3.0.2-r0 | — |
| Alpine v3.9 | wireshark | 2.6.9-r0 | — |
Advisories 3
- USN-4133-1 Wireshark vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-2423-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2547-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15778
- https://www.wireshark.org/security/wnpa-sec-2019-19.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=7b6e197da4c497e229ed3ebf6952bae5c426a820
- 108464 vdb-entry
- https://support.f5.com/csp/article/K06725231
- USN-4133-1 vendor-advisory
- https://support.f5.com/csp/article/K06725231?utm_source=f5support&%3Butm_medium=RSS
- [debian-lts-announce] 20201031 [SECURITY] [DLA 2423-1] wireshark security update mailing-list