Description
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.
Published: 2023-03-30
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3398-1 curl security update
EUVD EUVD EUVD-2023-31291 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.
Ubuntu USN Ubuntu USN USN-5964-1 curl vulnerabilities
Ubuntu USN Ubuntu USN USN-5964-2 curl vulnerabilities
History

Fri, 14 Feb 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Debian Debian Linux
Fedoraproject Fedora
Haxx Libcurl
Netapp Active Iq Unified Manager H300s H300s Firmware H410s H410s Firmware H500s H500s Firmware H700s H700s Firmware Ontap
Redhat Enterprise Linux Rhel Eus
Splunk Universal Forwarder
cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2025-02-14T15:39:25.676Z

Reserved: 2023-03-02T00:00:00.000Z

Link: CVE-2023-27536

cve-icon Vulnrichment

Updated: 2024-08-02T12:16:35.616Z

cve-icon NVD

Status : Modified

Published: 2023-03-30T20:15:07.547

Modified: 2025-02-14T16:15:33.497

Link: CVE-2023-27536

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-03-20T00:00:00Z

Links: CVE-2023-27536 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses