CVE-2020-8284

NameCVE-2020-8284
DescriptionA malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2500-1
NVD severitymedium
Debian Bugs977163

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
curl (PTS)stretch7.52.1-5+deb9u10vulnerable
stretch (security)7.52.1-5+deb9u13fixed
buster, buster (security)7.64.0-4+deb10u1vulnerable
bullseye, sid7.74.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
curlsourcestretch7.52.1-5+deb9u13DLA-2500-1
curlsource(unstable)7.74.0-1977163

Notes

https://curl.se/docs/CVE-2020-8284.html
https://github.com/curl/curl/commit/ec9cc725d598ac77de7b6df8afeec292b3c8ad46 (curl-7_74_0)

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