Description
The CoreUserInputHandler::doMode function in core/coreuserinputhandler.cpp in Quassel 0.10.0 allows remote attackers to cause a denial of service (application crash) via the "/op *" command in a query.
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 | quassel | 1:0.12.2-3 | — |
| Debian 13 | quassel | 1:0.12.2-3 | — |
| Debian 12 | quassel | 1:0.12.2-3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | quassel | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | quassel | 0.12.4-3.3 | openSUSE-SU-2024:10119-1 |
Advisories 1
- openSUSE-SU-2024:10119-1 quassel-base-0.12.4-3.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- openSUSE-SU-2015:2345 vendor-advisory
- https://github.com/quassel/quassel/pull/153
- https://github.com/quassel/quassel/commit/b8edbda019eeb99da8663193e224efc9d1265dc7
- FEDORA-2016-3bc3d7f66e vendor-advisory
- FEDORA-2016-7f0b1e47ac vendor-advisory
- [oss-security] 20151212 CVE request: Remote DoS in Quassel mailing-list
- [oss-security] 20151212 Re: CVE request: Remote DoS in Quassel mailing-list