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Improper Authentication Affecting curl package, versions *

low

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.09% (37th percentile)
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NVD
9.8 critical
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SUSE
5.8 medium
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Red Hat
5.9 medium

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  • Snyk ID SNYK-DEBIAN11-CURL-3366763
  • published 21 Mar 2023
  • disclosed 30 Mar 2023
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Introduced: 21 Mar 2023

CVE-2023-27536 Open this link in a new tab
CWE-287 Open this link in a new tab

How to fix?

There is no fixed version for Debian:11 curl.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Debian:11. See How to fix? for Debian:11 relevant fixed versions and status.

An authentication bypass vulnerability exists libcurl <8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.