| Name | CVE-2019-19271 |
| Description | An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| proftpd-dfsg (PTS) | jessie, jessie (lts) | 1.3.5e+r1.3.5-2+deb8u8 | fixed |
| stretch (security) | 1.3.5e+r1.3.5b-4+deb9u2 | fixed |
| stretch (lts), stretch | 1.3.5e+r1.3.5b-4+deb9u3 | fixed |
| buster | 1.3.6-4+deb10u6 | fixed |
| buster (security), buster (lts) | 1.3.6-4+deb10u4 | fixed |
| bullseye | 1.3.7a+dfsg-12+deb11u2 | fixed |
| bookworm | 1.3.8+dfsg-4+deb12u3 | fixed |
| sid, trixie | 1.3.8.b+dfsg-4 | fixed |
The information below is based on the following data on fixed versions.
Notes
[stretch] - proftpd-dfsg <not-affected> (Bug was introduced in 1.3.5c)
[jessie] - proftpd-dfsg <not-affected> (Bug was introduced in 1.3.5c)
https://github.com/proftpd/proftpd/issues/860
Introduced in: https://github.com/proftpd/proftpd/commit/474075d2cb8c8ced7764b1b4b5ad63a49284d61f (v1.3.5c)