Description
In Wireshark 3.2.0 to 3.2.1, 3.0.0 to 3.0.8, and 2.6.0 to 2.6.14, the EAP dissector could crash. This was addressed in epan/dissectors/packet-eap.c by using more careful sscanf parsing.
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 | 3.2.2-1 | — |
| Debian 13 | wireshark | 3.2.2-1 | — |
| Debian 12 | wireshark | 3.2.2-1 | — |
| Debian 9 | wireshark | 2.6.20-0+deb9u1 | DLA-2547-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 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 | 3.2.2-3.35.2 | SUSE-SU-2020:0693-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 |
| 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 |
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 | 3.2.2-r0 | — |
| Alpine v3.23 | wireshark | 3.2.2-r0 | — |
| Alpine v3.22 | wireshark | 3.2.2-r0 | — |
| Alpine v3.21 | wireshark | 3.2.2-r0 | — |
| Alpine v3.20 | wireshark | 3.2.2-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wireshark | 3.2.2-r0 | — |
| Alpine v3.18 | wireshark | 3.2.2-r0 | — |
| Alpine v3.17 | wireshark | 3.2.2-r0 | — |
| Alpine v3.16 | wireshark | 3.2.2-r0 | — |
| Alpine v3.15 | wireshark | 3.2.2-r0 | — |
| Alpine v3.14 | wireshark | 3.2.2-r0 | — |
| Alpine v3.13 | wireshark | 3.2.2-r0 | — |
| Alpine v3.12 | wireshark | 3.2.2-r0 | — |
| Alpine v3.11 | wireshark | 3.0.9-r0 | — |
| Alpine v3.10 | wireshark | 3.0.9-r0 | — |
| Alpine v3.9 | wireshark | 2.6.15-r0 | — |
Advisories 4
- DLA-2547-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- 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
- openSUSE-SU-2024:11513-1 libwireshark14-3.4.8-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16397
- https://www.wireshark.org/security/wnpa-sec-2020-05.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9fe2de783dbcbe74144678d60a4e3923367044b2
- openSUSE-SU-2020:0362 vendor-advisory
- FEDORA-2020-ef943221ca vendor-advisory
- FEDORA-2020-87737529a4 vendor-advisory
- FEDORA-2020-da7dcee2ec vendor-advisory
- GLSA-202007-13 vendor-advisory
- [debian-lts-announce] 20210206 [SECURITY] [DLA 2547-1] wireshark security update mailing-list