Information Exposure Affecting curl package, versions <0:7.29.0-51.el7


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.57% (79th percentile)

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  • Snyk IDSNYK-RHEL7-CURL-4861913
  • published26 Jul 2021
  • disclosed24 Jan 2018

Introduced: 24 Jan 2018

CVE-2018-1000007  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade RHEL:7 curl to version 0:7.29.0-51.el7 or higher.
This issue was patched in RHSA-2018:3157.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties. When asked to send custom headers in its HTTP requests, libcurl will send that set of headers first to the host in the initial URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the Location: response header value. Sending the same set of headers to subsequent hosts is in particular a problem for applications that pass on custom Authorization: headers, as this header often contains privacy sensitive information or data that could allow others to impersonate the libcurl-using client's request.

CVSS Scores

version 3.1