Description
In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the MMSE dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-mmse.c by preventing length overflows.
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 | 2.6.5-1 | — |
| Debian 13 | wireshark | 2.6.5-1 | — |
| Debian 12 | wireshark | 2.6.5-1 | — |
| Debian 9 | wireshark | 2.6.5-1~deb9u1 | DSA-4359-1 |
| Debian 8 | wireshark | 1.12.1+g01b65bf-4+deb8u16 | DLA-1634-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | wireshark | 2.6.5-1~ubuntu18.04.0 | — |
| Ubuntu 16.04 LTS | wireshark | 2.6.5-1~ubuntu16.04.0 | — |
| Ubuntu 14.04 LTS | wireshark | 2.6.5-1~ubuntu14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | wireshark +2 | 1.10.14-24.el7 | RHSA-2020:1047 |
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 | 2.4.11-3.15.1 | SUSE-SU-2020:0693-1, SUSE-SU-2018:4295-1 |
| SLES 12 SP4 | wireshark | 2.4.11-48.35.1 | SUSE-SU-2018:4298-1 |
| SLES 12 SP3 | wireshark | 2.4.11-48.35.1 | SUSE-SU-2018:4298-1 |
Show 4 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 |
| SLES for SAP 12 SP4 | wireshark | 2.4.11-48.35.1 | SUSE-SU-2018:4298-1 |
| SLES for SAP 12 SP3 | wireshark | 2.4.11-48.35.1 | SUSE-SU-2018:4298-1 |
| 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 | 2.6.5-r0 | — |
| Alpine v3.23 | wireshark | 2.6.5-r0 | — |
| Alpine v3.22 | wireshark | 2.6.5-r0 | — |
| Alpine v3.21 | wireshark | 2.6.5-r0 | — |
| Alpine v3.20 | wireshark | 2.6.5-r0 | — |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wireshark | 2.6.5-r0 | — |
| Alpine v3.18 | wireshark | 2.6.5-r0 | — |
| Alpine v3.17 | wireshark | 2.6.5-r0 | — |
| Alpine v3.16 | wireshark | 2.6.5-r0 | — |
| Alpine v3.15 | wireshark | 2.6.5-r0 | — |
| Alpine v3.14 | wireshark | 2.6.5-r0 | — |
| Alpine v3.13 | wireshark | 2.6.5-r0 | — |
| Alpine v3.12 | wireshark | 2.6.5-r0 | — |
| Alpine v3.11 | wireshark | 2.6.5-r0 | — |
| Alpine v3.10 | wireshark | 2.6.5-r0 | — |
| Alpine v3.9 | wireshark | 2.6.5-r0 | — |
| Alpine v3.8 | wireshark | 2.4.11-r0 | — |
| Alpine v3.7 | wireshark | 2.4.11-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | wireshark +2 | 1.10.14-24.amzn2 | ALAS2-2020-1438 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | wireshark +2 | 1.10.14-24.0.1.el7 | ELSA-2020-1047 |
Advisories 10
- RHSA-2020:1047 Red Hat Security Advisory: wireshark security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-4359-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1634-1 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
- SUSE-SU-2018:4295-1 Security update for wireshark SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2018:4298-1 Security update for wireshark SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2-2020-1438 Moderate: wireshark security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 17, 2020
- ELSA-2020-1047 Moderate: wireshark security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 6, 2020
References
- https://www.wireshark.org/security/wnpa-sec-2018-54.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=3b7555d32d11862f0e500ec466ad6bfe54190076
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15250
- [debian-lts-announce] 20190115 [SECURITY] [DLA 1634-1] wireshark security update mailing-list
- 106051 vdb-entry
- DSA-4359 vendor-advisory
- openSUSE-SU-2020:0362 vendor-advisory
- https://www.oracle.com/security-alerts/cpuapr2020.html