Information Exposure Affecting libcurl-minimal package, versions <0:7.61.1-18.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.21% (59th percentile)

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  • Snyk IDSNYK-RHEL8-LIBCURLMINIMAL-3973868
  • published26 Jul 2021
  • disclosed9 Dec 2020

Introduced: 9 Dec 2020

CVE-2020-8284  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade RHEL:8 libcurl-minimal to version 0:7.61.1-18.el8 or higher.
This issue was patched in RHSA-2021:1610.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-minimal package and not the libcurl-minimal package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1