CVE-2006-6171

NameCVE-2006-6171
DescriptionProFTPD 1.3.0a and earlier does not properly set the buffer size limit when CommandBufferSize is specified in the configuration file, which leads to an off-by-two buffer underflow. NOTE: in November 2006, the role of CommandBufferSize was originally associated with CVE-2006-5815, but this was an error stemming from a vague initial disclosure. NOTE: ProFTPD developers dispute this issue, saying that the relevant memory location is overwritten by assignment before further use within the affected function, so this is not a vulnerability
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-1218
Debian Bugs399070

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
proftpd-dfsg (PTS)buster1.3.6-4+deb10u6fixed
buster (security)1.3.6-4+deb10u4fixed
bullseye1.3.7a+dfsg-12+deb11u2fixed
bookworm1.3.8+dfsg-4+deb12u3fixed
sid, trixie1.3.8.b+dfsg-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
proftpdsourcesarge1.2.10-15sarge2DSA-1218
proftpd-dfsgsource(unstable)1.3.0-13low399070

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