Description
Quassel before 0.12.2 does not properly re-initialize the database session when the PostgreSQL database is restarted, which allows remote attackers to conduct SQL injection attacks via a \ (backslash) in a message. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-4422.
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 | 1:0.10.0-2.4 | — |
| Debian 13 | quassel | 1:0.10.0-2.4 | — |
| Debian 12 | quassel | 1:0.10.0-2.4 | — |
| Debian 8 | quassel | 1:0.10.0-2.3+deb8u1 | DSA-3258-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | quassel | 0.10.0-0ubuntu2.2 | — |
Advisories 1
- DSA-3258-1 quassel - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://www.quassel-irc.org/node/127
- DSA-3258 vendor-advisory
- 74339 vdb-entry