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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2500-1, DSA-4881-1
Debian Bugs977163

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
curl (PTS)bullseye7.74.0-1.3+deb11u12fixed
bullseye (security)7.74.0-1.3+deb11u11fixed
bookworm7.88.1-10+deb12u6fixed
bookworm (security)7.88.1-10+deb12u5fixed
sid, trixie8.8.0-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
curlsourcestretch7.52.1-5+deb9u13DLA-2500-1
curlsourcebuster7.64.0-4+deb10u2DSA-4881-1
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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