Description
Buffer overflow in the Bluetooth HCI_ISO dissector in Wireshark 3.4.0 to 3.4.9 allows denial of service via packet injection or crafted capture file
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Wireshark Foundation | Wireshark | >=3.4.0, <3.4.10 | — |
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 | 3.6.0-1 | — |
| Debian 13 | wireshark | 3.6.0-1 | — |
| Debian 12 | wireshark | 3.6.0-1 | — |
| Debian 11 | wireshark | 3.4.10-0+deb11u1 | DSA-5019-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 20.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 18.04 LTS | wireshark | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 SP3 | wireshark | 3.4.10-3.62.1 | SUSE-SU-2021:3938-1 |
| SLES 15 SP2 | wireshark | 3.4.10-3.62.1 | SUSE-SU-2021:3938-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wireshark | 3.4.10-1.1 | openSUSE-SU-2024:11641-1 |
| openSUSE Leap 15.3 | wireshark | 3.4.10-3.62.1 | openSUSE-SU-2021:3938-1 |
| openSUSE Leap 15.2 | wireshark | 3.4.10-lp152.2.21.1 | openSUSE-SU-2021:1566-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | wireshark | 3.4.11-r0 | — |
| Alpine v3.23 | wireshark | 3.4.11-r0 | — |
| Alpine v3.22 | wireshark | 3.4.11-r0 | — |
| Alpine v3.21 | wireshark | 3.4.11-r0 | — |
| Alpine v3.20 | wireshark | 3.4.11-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wireshark | 3.4.11-r0 | — |
| Alpine v3.18 | wireshark | 3.4.11-r0 | — |
| Alpine v3.17 | wireshark | 3.4.11-r0 | — |
| Alpine v3.16 | wireshark | 3.4.11-r0 | — |
| Alpine v3.15 | wireshark | 3.4.13-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | wireshark-cli +1 | 1:4.0.2-1.amzn2023.0.2 | ALAS2023-2023-038 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | wireshark | 3.4.14-1 | — |
Advisories 9
- WID-SEC-2022-0432 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026
- WID-SEC-2022-0302 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Administratorrechten BSI CERT-Bund (WID) · Oct 11, 2026
- DSA-5019-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2021:3938-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1566-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3938-1 Security update for wireshark SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11641-1 libwireshark14-3.4.10-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1730 Wireshark: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Jun 4, 2025
- ALAS2023-2023-038 Moderate: wireshark security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 22, 2023
References
- https://www.wireshark.org/security/wnpa-sec-2021-08.html
- https://gitlab.com/wireshark/wireshark/-/issues/17649
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39926.json
- FEDORA-2021-97bd631e0a vendor-advisory
- FEDORA-2021-3747cf6107 vendor-advisory
- DSA-5019 vendor-advisory
- GLSA-202210-04 vendor-advisory