Description
In Wireshark 3.2.0 to 3.2.5, the Kafka protocol dissector could crash. This was addressed in epan/dissectors/packet-kafka.c by avoiding a double free during LZ4 decompression.
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 | 3.2.6-1 | — |
| Debian 13 | wireshark | 3.2.6-1 | — |
| Debian 12 | wireshark | 3.2.6-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | wireshark | 3.2.3-1ubuntu0.1~esm1 | USN-6262-1 |
| Ubuntu Pro 18.04 LTS | wireshark | 2.6.10-1~ubuntu18.04.0+esm1 | USN-6262-1 |
| Ubuntu Pro 16.04 LTS | wireshark | 2.6.10-1~ubuntu16.04.0+esm1 | USN-6262-1 |
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~esm2 | USN-6262-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | wireshark | 3.2.7-3.41.1 | SUSE-SU-2020:3166-1 |
| SLES 15 SP1 | wireshark | 3.2.7-3.41.1 | SUSE-SU-2020:3166-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wireshark | 3.4.8-1.2 | openSUSE-SU-2024:11513-1 |
| openSUSE Leap 15.2 | wireshark | 3.2.7-lp152.2.6.1 | openSUSE-SU-2020:1882-1 |
| openSUSE Leap 15.1 | wireshark | 3.2.7-lp151.2.15.1 | openSUSE-SU-2020:1878-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | wireshark | 3.2.6-r0 | — |
| Alpine v3.23 | wireshark | 3.2.6-r0 | — |
| Alpine v3.22 | wireshark | 3.2.6-r0 | — |
| Alpine v3.21 | wireshark | 3.2.6-r0 | — |
| Alpine v3.20 | wireshark | 3.2.6-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wireshark | 3.2.6-r0 | — |
| Alpine v3.18 | wireshark | 3.2.6-r0 | — |
| Alpine v3.17 | wireshark | 3.2.6-r0 | — |
| Alpine v3.16 | wireshark | 3.2.6-r0 | — |
| Alpine v3.15 | wireshark | 3.2.6-r0 | — |
| Alpine v3.14 | wireshark | 3.2.6-r0 | — |
| Alpine v3.13 | wireshark | 3.2.6-r0 | — |
| Alpine v3.12 | wireshark | 3.2.6-r0 | — |
Advisories 6
- USN-6262-1 wireshark vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- openSUSE-SU-2020:1878-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1882-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3166-1 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
- WID-SEC-2023-1918 Wireshark: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jul 30, 2023
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16672
- https://www.wireshark.org/security/wnpa-sec-2020-10.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=76afda963de4f0b9be24f2d8e873990a5cbf221b
- GLSA-202008-14 vendor-advisory
- FEDORA-2020-2981a0224d vendor-advisory
- FEDORA-2020-7f91f10f2b vendor-advisory
- openSUSE-SU-2020:1878 vendor-advisory
- openSUSE-SU-2020:1882 vendor-advisory
- https://www.oracle.com/security-alerts/cpujan2021.html