Improper Authentication Affecting curl package, versions <8.0.0-r0


0.0
medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.12% (46th percentile)
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NVD
5.9 medium
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SUSE
5.8 medium
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Red Hat
5.9 medium

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  • Snyk ID SNYK-ALPINE318-CURL-5511984
  • published 20 Mar 2023
  • disclosed 30 Mar 2023

How to fix?

Upgrade Alpine:3.18 curl to version 8.0.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Alpine. See How to fix? for Alpine:3.18 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.