| Name | CVE-2020-8284 |
| Description | A 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2500-1, DSA-4881-1, ELA-334-1 |
| Debian Bugs | 977163 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| curl (PTS) | jessie, jessie (lts) | 7.38.0-4+deb8u28 | fixed |
| stretch (security) | 7.52.1-5+deb9u16 | fixed | |
| stretch (lts), stretch | 7.52.1-5+deb9u22 | fixed | |
| buster, buster (lts) | 7.64.0-4+deb10u10 | fixed | |
| buster (security) | 7.64.0-4+deb10u9 | fixed | |
| bullseye | 7.74.0-1.3+deb11u13 | fixed | |
| bullseye (security) | 7.74.0-1.3+deb11u14 | fixed | |
| bookworm | 7.88.1-10+deb12u8 | fixed | |
| bookworm (security) | 7.88.1-10+deb12u5 | fixed | |
| sid, trixie | 8.11.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| curl | source | jessie | 7.38.0-4+deb8u19 | ELA-334-1 | ||
| curl | source | stretch | 7.52.1-5+deb9u13 | DLA-2500-1 | ||
| curl | source | buster | 7.64.0-4+deb10u2 | DSA-4881-1 | ||
| curl | source | (unstable) | 7.74.0-1 | 977163 |
https://curl.se/docs/CVE-2020-8284.html
https://github.com/curl/curl/commit/ec9cc725d598ac77de7b6df8afeec292b3c8ad46 (curl-7_74_0)