Description
The pr_data_xfer function in ProFTPD before 1.3.2rc3 allows remote authenticated users to cause a denial of service (CPU consumption) via an ABOR command during a data transfer.
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 | proftpd-dfsg | 1.3.2-1 | — |
| Debian 13 | proftpd-dfsg | 1.3.2-1 | — |
| Debian 12 | proftpd-dfsg | 1.3.2-1 | — |
| Debian 5.0 | proftpd-dfsg | 1.3.1-17lenny6 | DSA-2191-1 |
Advisories 1
- DSA-2191-1 proftpd-dfsg - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-2191 vendor-advisory
- http://bugs.proftpd.org/show_bug.cgi?id=3131