Description
In Wireshark 2.2.0 to 2.2.3 and 2.0.0 to 2.0.9, the DHCPv6 dissector could go into a large loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-dhcpv6.c by changing a data type to avoid an integer overflow.
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 | 2.2.4+gcc3dc1b-1 | — |
| Debian 13 | wireshark | 2.2.4+gcc3dc1b-1 | — |
| Debian 12 | wireshark | 2.2.4+gcc3dc1b-1 | — |
| Debian 8 | wireshark | 1.12.1+g01b65bf-4+deb8u11 | DSA-3811-1 |
| Debian 7 | wireshark | 1.12.1+g01b65bf-4+deb8u6~deb7u7 | DLA-858-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | wireshark | 2.2.6+g32dac6a-2ubuntu0.16.04 | — |
| Ubuntu 14.04 LTS | wireshark | 1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | wireshark | 2.2.6-44.3 | SUSE-SU-2017:1442-1 |
| SLES 12 SP1 | wireshark | 2.2.6-44.3 | SUSE-SU-2017:1442-1 |
| SLES 11 SP4 | wireshark | 2.0.12-36.1 | SUSE-SU-2017:1174-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | wireshark | 2.2.6-44.3 | SUSE-SU-2017:1442-1 |
| SLES for SAP 12 SP1 | wireshark | 2.2.6-44.3 | SUSE-SU-2017:1442-1 |
| SLES for SAP 11 SP4 | wireshark | 2.0.12-36.1 | SUSE-SU-2017:1174-1 |
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 v3.5 | wireshark | 2.2.4-r0 | — |
Advisories 5
- DLA-858-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3811-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:1442-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1174-1 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
References
- https://www.wireshark.org/security/wnpa-sec-2017-02.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=57894f741f7cc98b46c9fdce7eee8256d2a4ae3f
- https://code.wireshark.org/review/#/c/19747/
- 95798 vdb-entry
- DSA-3811 vendor-advisory
- 1037694 vdb-entry
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13345