Description
The CtcpParser::packedReply method in core/ctcpparser.cpp in Quassel before 0.7.3 allows remote attackers to cause a denial of service (crash) via a crafted Client-To-Client Protocol (CTCP) request, as demonstrated in the wild in September 2011.
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 | 0.7.3-1 | — |
| Debian 13 | quassel | 0.7.3-1 | — |
| Debian 12 | quassel | 0.7.3-1 | — |
References
- 75351 vdb-entry
- 45970 third-party-advisory
- USN-1200-1 vendor-advisory
- http://bugs.quassel-irc.org/projects/quassel-irc/repository/revisions/da215fcb9cd3096a3e223c87577d5d4ab8f8518b/diff/src/core/ctcpparser.cpp
- 49526 vdb-entry
- https://bugs.gentoo.org/show_bug.cgi?id=382313
- quasselirc-ctcp-dos(69682) vdb-entry
- [oss-security] 20110909 Re: CVE request: Quassel < 0.7.3 CTCP request core DoS mailing-list
- [oss-security] 20110908 CVE request: Quassel < 0.7.3 CTCP request core DoS mailing-list