Description
Wee Enhanced Environment for Chat (WeeChat) 0.2.6 allows remote attackers to cause a denial of service (crash) via an IRC PRIVMSG command containing crafted color codes that trigger an out-of-bounds read.
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 | weechat | 0.2.6.1-1 | — |
| Debian 13 | weechat | 0.2.6.1-1 | — |
| Debian 12 | weechat | 0.2.6.1-1 | — |
| Debian 5.0 | weechat | 0.2.6-1+lenny1 | DSA-1744-1 |
Advisories 1
- DSA-1744-1 weechat - denial of service Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://savannah.nongnu.org/bugs/index.php?25862
- 34148 vdb-entry
- 34304 third-party-advisory
- http://weechat.flashtux.org/
- 52763 vdb-entry
- ADV-2009-0758 vdb-entry
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=519940
- DSA-1744 vendor-advisory
- weechat-ircmessage-dos(49295) vdb-entry
- 34328 third-party-advisory
- [oss-security] 20090317 Re: CVE request -- firefox, vlc, WeeChat mailing-list