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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3398-1 | curl security update |
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 |
USN-5964-1 | curl vulnerabilities |
Ubuntu USN |
USN-5964-2 | curl vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 14 Feb 2025 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2025-02-14T15:39:25.676Z
Reserved: 2023-03-02T00:00:00.000Z
Link: CVE-2023-27536
Updated: 2024-08-02T12:16:35.616Z
Status : Modified
Published: 2023-03-30T20:15:07.547
Modified: 2025-02-14T16:15:33.497
Link: CVE-2023-27536
OpenCVE Enrichment
No data.
Debian DLA
EUVD
Ubuntu USN