Description
murmur in Mumble through 1.2.19 before 2018-08-31 mishandles multiple concurrent requests that are persisted in the database, which allows remote attackers to cause a denial of service (daemon hang or crash) via a message flood.
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 | mumble | 1.3.0~git20190114.9fcc588+dfsg-1 | — |
| Debian 13 | mumble | 1.3.0~git20190114.9fcc588+dfsg-1 | — |
| Debian 12 | mumble | 1.3.0~git20190114.9fcc588+dfsg-1 | — |
| Debian 9 | mumble | 1.2.18-1+deb9u1 | DSA-4402-1 |
| Debian 8 | mumble | 1.2.8-2+deb8u1 | DLA-1661-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mumble | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | mumble | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP1 | mumble | 1.2.19-bp151.6.3.1 | openSUSE-SU-2020:0137-1, openSUSE-SU-2019:1876-1 |
| SUSE Package Hub 15 | mumble | 1.2.19-bp150.3.3.1 | openSUSE-SU-2019:1794-1 |
| SUSE Package Hub 12 | mumble | 1.2.19-bp150.3.3.1 | openSUSE-SU-2019:1794-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mumble | 1.3.4-2.7 | openSUSE-SU-2024:11065-1 |
| openSUSE Leap 15.1 | mumble | 1.2.19-bp150.3.3.1 | openSUSE-SU-2019:1794-1 |
| openSUSE Leap 15.0 | mumble | 1.2.19-bp150.3.3.1 | openSUSE-SU-2019:1794-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | mumble | 1.2.19-r9 | — |
| Alpine v3.23 | mumble | 1.2.19-r9 | — |
| Alpine v3.22 | mumble | 1.2.19-r9 | — |
| Alpine v3.21 | mumble | 1.2.19-r9 | — |
| Alpine v3.20 | mumble | 1.2.19-r9 | — |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | mumble | 1.2.19-r9 | — |
| Alpine v3.18 | mumble | 1.2.19-r9 | — |
| Alpine v3.17 | mumble | 1.2.19-r9 | — |
| Alpine v3.16 | mumble | 1.2.19-r9 | — |
| Alpine v3.15 | mumble | 1.2.19-r9 | — |
| Alpine v3.14 | mumble | 1.2.19-r9 | — |
| Alpine v3.13 | mumble | 1.2.19-r9 | — |
| Alpine v3.12 | mumble | 1.2.19-r9 | — |
| Alpine v3.11 | mumble | 1.2.19-r9 | — |
| Alpine v3.10 | mumble | 1.2.19-r9 | — |
| Alpine v3.9 | mumble | 1.2.19-r9 | — |
| Alpine v3.8 | mumble | 1.2.19-r7 | — |
| Alpine v3.7 | mumble | 1.2.19-r5 | — |
| Alpine v3.6 | mumble | 1.2.19-r2 | — |
Advisories 6
- DSA-4402-1 mumble - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1661-1 mumble - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2020:0137-1 Security update for mumble SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11065-1 mumble-1.3.4-2.7 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1794-1 Security update for mumble SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1876-1 Security update for mumble SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://bugs.debian.org/919249
- DSA-4402 vendor-advisory
- https://github.com/mumble-voip/mumble/pull/3510
- [debian-lts-announce] 20190206 [SECURITY] [DLA 1661-1] mumble security update mailing-list
- https://github.com/mumble-voip/mumble/issues/3505
- https://github.com/mumble-voip/mumble/pull/3512
- openSUSE-SU-2019:1794 vendor-advisory
- openSUSE-SU-2019:1876 vendor-advisory
- openSUSE-SU-2020:0137 vendor-advisory