CVE-2011-1575

NameCVE-2011-1575
DescriptionThe STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.
SourceCVE (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 PackageReleaseVersionStatus
pure-ftpd (PTS)jessie, jessie (lts)1.0.36-3.2+deb8u1fixed
stretch1.0.43-3fixed
buster1.0.47-3fixed
bullseye1.0.49-4.1fixed
bookworm1.0.50-2.1fixed
sid, trixie1.0.50-2.2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pure-ftpdsourcesqueeze1.0.28-3+squeeze1
pure-ftpdsource(unstable)1.0.30-1low

Notes

[lenny] - pure-ftpd <no-dsa> (Minor issue)

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