CVE-2020-8284
Published: 9 December 2020
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
curl Launchpad, Ubuntu, Debian |
bionic |
Released
(7.58.0-2ubuntu3.12)
|
| focal |
Released
(7.68.0-1ubuntu2.4)
|
|
| groovy |
Released
(7.68.0-1ubuntu4.2)
|
|
| trusty |
Released
(7.35.0-1ubuntu2.20+esm6)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(7.74.0)
|
|
| xenial |
Released
(7.47.0-1ubuntu2.18)
|
|
|
Patches: upstream: https://github.com/curl/curl/commit/ec9cc725d598ac |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.7 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |