Description
Crash in DNP dissector in Wireshark 3.4.0 to 3.4.6 and 3.2.0 to 3.2.14 allows denial of service via packet injection or crafted capture file
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The Wireshark Foundation | Wireshark | >=3.4.0, <3.4.7, >=3.2.0, <3.2.15 | — |
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 | 3.4.7-1 | — |
| Debian 13 | wireshark | 3.4.7-1 | — |
| Debian 12 | wireshark | 3.4.7-1 | — |
| Debian 11 | wireshark | 3.4.10-0+deb11u1 | DSA-5019-1 |
| Debian 9 | wireshark | 2.6.20-0+deb9u2 | DLA-2849-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | wireshark | No fix yet | — |
| Ubuntu 26.04 LTS | wireshark | No fix yet | — |
| Ubuntu 25.10 | wireshark | No fix yet | — |
| Ubuntu 24.04 LTS | wireshark | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 20.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 18.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 16.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 14.04 LTS | wireshark | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | wireshark | 3.4.7-3.59.1 | SUSE-SU-2021:3017-1 |
| SLES 15 SP2 | wireshark | 3.4.7-3.59.1 | SUSE-SU-2021:3017-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wireshark | 3.4.8-1.2 | openSUSE-SU-2024:11513-1 |
| openSUSE Leap 15.3 | wireshark | 3.4.7-3.59.1 | openSUSE-SU-2021:3017-1 |
| openSUSE Leap 15.2 | wireshark | 3.4.7-lp152.2.18.1 | openSUSE-SU-2021:1276-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | wireshark | 3.4.7-r0 | — |
| Alpine v3.23 | wireshark | 3.4.7-r0 | — |
| Alpine v3.22 | wireshark | 3.4.7-r0 | — |
| Alpine v3.21 | wireshark | 3.4.7-r0 | — |
| Alpine v3.20 | wireshark | 3.4.7-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wireshark | 3.4.7-r0 | — |
| Alpine v3.18 | wireshark | 3.4.7-r0 | — |
| Alpine v3.17 | wireshark | 3.4.7-r0 | — |
| Alpine v3.16 | wireshark | 3.4.7-r0 | — |
| Alpine v3.15 | wireshark | 3.4.7-r0 | — |
| Alpine v3.14 | wireshark | 3.4.7-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | wireshark | 3.4.14-1 | — |
Advisories 6
- DSA-5019-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2849-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2021:1276-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:3017-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11513-1 libwireshark14-3.4.8-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3017-1 Security update for wireshark SUSE / openSUSE Security Updates · May 2, 2025
References
- https://www.wireshark.org/security/wnpa-sec-2021-05.html
- https://gitlab.com/wireshark/wireshark/-/issues/17462
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22235.json
- DSA-5019 vendor-advisory
- [debian-lts-announce] 20211226 [SECURITY] [DLA 2849-1] wireshark security update mailing-list
- GLSA-202210-04 vendor-advisory