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Affected Component
Analysis
curl
Patched
Name
CVE-2023-27536
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 Date
Updated Date
Workaround
-
Advisories
https://security.gentoo.org/glsa/202310-12Third Party Advisory
https://security.netapp.com/advisory/ntap-20230420-0010/Third Party Advisory
https://security.gentoo.org/glsa/202310-12Third Party Advisory
https://security.netapp.com/advisory/ntap-20230420-0010/Third Party Advisory
Analysis#
Vulnerability Ratings#
5.9
CVSSv31
5.9
CVSSv31
NaN
other
Others affected components#
Name
Project
Project Version
Version
Status
buildroot
2025.02.x
8.20.0
Not Affected
buildroot
master
8.21.0
Not Affected
openwrt
master
8.19.0-r2
Not Affected
openwrt
master
8.20.0-r1
Not Affected
openwrt
openwrt-25.12
8.19.0-r2
Not Affected
openwrt
openwrt-25.12
8.14.1-r1
Not Affected
yocto
master
8.20.0
Not Affected
yocto
scarthgap
8.7.1
Not Affected
Resolved with patches#
curl (yocto:kirkstone)
#
Title
Author
Resolve
1
url: only reuse connections with same GSS delegation
Daniel Stenberg <daniel@haxx.se>
CVE-2023-27536