Description
vsftpd before 1.2.2, when under heavy load, allows attackers to cause a denial of service (crash) via a SIGCHLD signal during a malloc or free call, which is not re-entrant.
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 | vsftpd | 2.0.1-1 | — |
| Debian 13 | vsftpd | 2.0.1-1 | — |
| Debian 12 | vsftpd | 2.0.1-1 | — |
References
- oval:org.mitre.oval:def:11049 vdb-entry signature
- 11680 third-party-advisory
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=119136
- RHBA-2004-164 vendor-advisory
- 10394 vdb-entry
- 6306 vdb-entry
- 11736 third-party-advisory
- vsftpd-connection-dos(16222) vdb-entry