Description
Dungeon Crawl Stone Soup (aka DCSS or crawl) before 0.25 allows remote attackers to execute arbitrary code via Lua bytecode embedded in an uploaded .crawlrc file.
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 | crawl | 2:0.25.0-1 | — |
| Debian 13 | crawl | 2:0.25.0-1 | — |
| Debian 12 | crawl | 2:0.25.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | crawl | 2:0.24.0-1ubuntu0.1~esm1 | — |
| Ubuntu Pro 18.04 LTS | crawl | 2:0.21.1-1ubuntu0.1~esm1 | — |
| Ubuntu Pro 16.04 LTS | crawl | 2:0.17.1-1ubuntu0.1~esm1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP1 | crawl | 0.24.0-bp151.4.3.2 | openSUSE-SU-2020:0549-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | crawl | 0.26.1-1.2 | openSUSE-SU-2024:10698-1 |
| openSUSE Leap 15.1 | crawl | 0.24.0-bp151.4.3.2 | openSUSE-SU-2020:0549-1 |
Advisories 2
- openSUSE-SU-2024:10698-1 crawl-0.26.1-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0549-1 Security update for crawl SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://dpmendenhall.blogspot.com/2020/03/dungeon-crawl-stone-soup.html
- https://github.com/crawl/crawl/commit/768f60da87a3fa0b5561da5ade9309577c176d04
- https://github.com/crawl/crawl/commit/fc522ff6eb1bbb85e3de60c60a45762571e48c28
- openSUSE-SU-2020:0549 vendor-advisory
- FEDORA-2020-c976cfa87e vendor-advisory
- FEDORA-2020-de88782eaa vendor-advisory