Description
In Wireshark 2.6.0 to 2.6.1 and 2.4.0 to 2.4.7, the CoAP protocol dissector could crash. This was addressed in epan/dissectors/packet-coap.c by properly checking for a NULL condition.
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 | 2.6.2-1 | — |
| Debian 13 | wireshark | 2.6.2-1 | — |
| Debian 12 | wireshark | 2.6.2-1 | — |
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 15 SP1 | libmaxminddb | 1.4.2-1.3.1 | SUSE-SU-2020:0693-1 |
| SLES 15 SP1 | spandsp | 0.0.6-3.2.1 | SUSE-SU-2020:0693-1 |
| SLES 15 SP1 | wireshark | 3.2.2-3.35.2 | SUSE-SU-2020:0693-1 |
| SLES 15 | libmaxminddb | 1.4.2-1.3.1 | SUSE-SU-2020:0693-1 |
| SLES 15 | spandsp | 0.0.6-3.2.1 | SUSE-SU-2020:0693-1 |
| SLES 15 | wireshark | 2.4.8-3.6.1 | SUSE-SU-2020:0693-1, SUSE-SU-2018:2301-1 |
| SLES 12 SP3 | wireshark | 2.4.9-48.29.1 | SUSE-SU-2018:2891-1 |
| SLES 12 SP2 | wireshark | 2.4.9-48.29.1 | SUSE-SU-2018:2891-2, SUSE-SU-2018:2891-1 |
| SLES 12 SP1 | wireshark | 2.4.9-48.29.1 | SUSE-SU-2018:2891-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | wireshark | 2.4.9-48.29.1 | SUSE-SU-2018:2891-1 |
| SLES 11 SP4 | wireshark | 2.2.16-40.28.1 | SUSE-SU-2018:2412-1 |
| SLES for SAP 15 | libmaxminddb | 1.4.2-1.3.1 | SUSE-SU-2020:0693-1 |
| SLES for SAP 15 | spandsp | 0.0.6-3.2.1 | SUSE-SU-2020:0693-1 |
| SLES for SAP 15 | wireshark | 3.2.2-3.35.2 | SUSE-SU-2020:0693-1 |
| SLES for SAP 12 SP3 | wireshark | 2.4.9-48.29.1 | SUSE-SU-2018:2891-1 |
| SLES for SAP 12 SP2 | wireshark | 2.4.9-48.29.1 | SUSE-SU-2018:2891-1 |
| SLES for SAP 12 SP1 | wireshark | 2.4.9-48.29.1 | SUSE-SU-2018:2891-1 |
| SLES for SAP 11 SP4 | wireshark | 2.2.16-40.28.1 | SUSE-SU-2018:2412-1 |
| SLE HPC 15 | libmaxminddb | 1.4.2-1.3.1 | SUSE-SU-2020:0693-1 |
| SLE HPC 15 | spandsp | 0.0.6-3.2.1 | SUSE-SU-2020:0693-1 |
| SLE HPC 15 | wireshark | 3.2.2-3.35.2 | SUSE-SU-2020:0693-1 |
| SUSE OpenStack Cloud 7 | wireshark | 2.4.9-48.29.1 | SUSE-SU-2018:2891-1 |
| SUSE Enterprise Storage 4 | wireshark | 2.4.9-48.29.1 | SUSE-SU-2018:2891-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wireshark | 3.4.8-1.2 | openSUSE-SU-2024:11513-1 |
| openSUSE Leap 15.1 | libmaxminddb | 1.4.2-lp151.3.3.1 | openSUSE-SU-2020:0362-1 |
| openSUSE Leap 15.1 | spandsp | 0.0.6-lp151.3.3.1 | openSUSE-SU-2020:0362-1 |
| openSUSE Leap 15.1 | wireshark | 3.2.2-lp151.2.9.1 | openSUSE-SU-2020:0362-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | wireshark | 2.6.2-r0 | — |
| Alpine v3.23 | wireshark | 2.6.2-r0 | — |
| Alpine v3.22 | wireshark | 2.6.2-r0 | — |
| Alpine v3.21 | wireshark | 2.6.2-r0 | — |
| Alpine v3.20 | wireshark | 2.6.2-r0 | — |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wireshark | 2.6.2-r0 | — |
| Alpine v3.18 | wireshark | 2.6.2-r0 | — |
| Alpine v3.17 | wireshark | 2.6.2-r0 | — |
| Alpine v3.16 | wireshark | 2.6.2-r0 | — |
| Alpine v3.15 | wireshark | 2.6.2-r0 | — |
| Alpine v3.14 | wireshark | 2.6.2-r0 | — |
| Alpine v3.13 | wireshark | 2.6.2-r0 | — |
| Alpine v3.12 | wireshark | 2.6.2-r0 | — |
| Alpine v3.11 | wireshark | 2.6.2-r0 | — |
| Alpine v3.10 | wireshark | 2.6.2-r0 | — |
| Alpine v3.9 | wireshark | 2.6.2-r0 | — |
| Alpine v3.8 | wireshark | 2.4.8-r0 | — |
| Alpine v3.7 | wireshark | 2.4.8-r0 | — |
Advisories 7
- openSUSE-SU-2020:0362-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0693-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2301-1 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-2018:2891-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2412-1 Security update for wireshark SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2018:2891-2 Security update for wireshark SUSE / openSUSE Security Updates · May 2, 2025
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14966
- 1041608 vdb-entry
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=81ce5fcb3e37a0aaeb7532f7a2a09366f16fa310
- https://www.wireshark.org/security/wnpa-sec-2018-42.html
- 104847 vdb-entry
- openSUSE-SU-2020:0362 vendor-advisory