Description
crawl before 4.0.0 beta23 does not properly "apply a size check" when copying a certain environment variable, which may allow local users to gain privileges, possibly as a result of 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 | crawl | 1:4.0.0beta26-4 | — |
| Debian 13 | crawl | 1:4.0.0beta26-4 | — |
| Debian 12 | crawl | 1:4.0.0beta26-4 | — |
| Debian 3.0 | crawl | 4.0.0beta23-2woody1 | DSA-432 |
Advisories 1
- DSA-432 crawl - buffer overflow Debian Security (DSA / DLA) · Mar 9, 2026
References
- 10788 third-party-advisory
- 9566 vdb-entry
- crawl-long-environment-bo(15032) vdb-entry
- DSA-432 vendor-advisory