Description
WeeChat before 1.7.1 allows a remote crash by sending a filename via DCC to the IRC plugin. This occurs in the irc_ctcp_dcc_filename_without_quotes function during quote removal, with a buffer overflow.
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 | 1.7-3 | — |
| Debian 13 | weechat | 1.7-3 | — |
| Debian 12 | weechat | 1.7-3 | — |
| Debian 8 | weechat | 1.0.1-1+deb8u1 | DSA-3836-1 |
| Debian 7 | weechat | 0.3.8-1+deb7u2 | DLA-919-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | weechat | 1.4-2ubuntu0.1 | — |
| Ubuntu 14.04 LTS | weechat | 0.4.2-3ubuntu0.1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | weechat | 3.2-1.3 | openSUSE-SU-2024:11508-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | weechat | 1.7.1-r0 | — |
| Alpine v3.23 | weechat | 1.7.1-r0 | — |
| Alpine v3.22 | weechat | 1.7.1-r0 | — |
| Alpine v3.21 | weechat | 1.7.1-r0 | — |
| Alpine v3.20 | weechat | 1.7.1-r0 | — |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | weechat | 1.7.1-r0 | — |
| Alpine v3.18 | weechat | 1.7.1-r0 | — |
| Alpine v3.17 | weechat | 1.7.1-r0 | — |
| Alpine v3.16 | weechat | 1.7.1-r0 | — |
| Alpine v3.15 | weechat | 1.7.1-r0 | — |
| Alpine v3.14 | weechat | 1.7.1-r0 | — |
| Alpine v3.13 | weechat | 1.7.1-r0 | — |
| Alpine v3.12 | weechat | 1.7.1-r0 | — |
| Alpine v3.11 | weechat | 1.7.1-r0 | — |
| Alpine v3.10 | weechat | 1.7.1-r0 | — |
| Alpine v3.9 | weechat | 1.7.1-r0 | — |
| Alpine v3.8 | weechat | 1.7.1-r0 | — |
| Alpine v3.7 | weechat | 1.7.1-r0 | — |
| Alpine v3.6 | weechat | 1.7.1-r0 | — |
| Alpine v3.5 | weechat | 1.6.0-r1 | — |
| Alpine v3.4 | weechat | 1.5-r2 | — |
| Alpine v3.3 | weechat | 1.3-r4 | — |
| Alpine v3.2 | weechat | 1.2-r1 | — |
Advisories 3
- DLA-919-1 weechat - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3836-1 weechat - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:11508-1 weechat-3.2-1.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 97987 vdb-entry
- https://weechat.org/download/security/
- https://github.com/weechat/weechat/commit/2fb346f25f79e412cf0ed314fdf791763c19b70b
- https://weechat.org/news/95/20170422-Version-1.7.1/
- DSA-3836 vendor-advisory
- FEDORA-2020-4d232b48b8 vendor-advisory
- FEDORA-2020-db890b4800 vendor-advisory
- FEDORA-2020-d242130019 vendor-advisory