Description
Quassel before 0.12-rc1 uses an incorrect data-type size when splitting a message, which allows remote attackers to cause a denial of service (crash) via a long CTCP query containing only multibyte characters.
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 | 1:0.10.0-2.3 | — |
| Debian 13 | quassel | 1:0.10.0-2.3 | — |
| Debian 12 | quassel | 1:0.10.0-2.3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | quassel | 0.10.0-0ubuntu2.2 | — |
References
- https://github.com/quassel/quassel/commit/b5e38970ffd55e2dd9f706ce75af9a8d7730b1b8
- [oss-security] 20150320 CVE request: denial of service in Quassel mailing-list
- openSUSE-SU-2015:0687 vendor-advisory
- [oss-security] 20150327 Re: CVE request: denial of service in Quassel mailing-list
- [oss-security] 20150328 Re: CVE request: denial of service in Quassel mailing-list
- 73305 vdb-entry