Description
In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the SIGCOMP dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-sigcomp.c by correcting a memory-size check.
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 | 2.2.6+g32dac6a-1 | — |
| Debian 13 | wireshark | 2.2.6+g32dac6a-1 | — |
| Debian 12 | wireshark | 2.2.6+g32dac6a-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 | — |
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 |
Advisories 3
- 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