Description
libcurl would reuse a previously created connection even when some mTLS config related option had been changed that should have prohibited reuse. libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, some TLS settings related to client certificates were left out from the configuration match checks, making them match too easily. In particular options related to the private key.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
curl curl
Default version status: unaffected
7.7.0 to < 8.14.2affected8.15.0 to < 8.16.1affected8.17.0 to < 8.20.1affected
curl curl
Default version status: unaffected
a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4 to < 7541ae569d82fb308a5e2d94916027da4fa3ba3eaffected
curl curl
Default version status: unaffected
8.20.0affected8.19.0affected8.18.0affected8.17.0affected8.16.0affected8.15.0affected8.14.1affected8.14.0affected8.13.0affected8.12.1affected8.12.0affected8.11.1affected8.11.0affected8.10.1affected8.10.0affected8.9.1affected8.9.0affected8.8.0affected8.7.1affected8.7.0affected8.6.0affected8.5.0affected8.4.0affected8.3.0affected8.2.1affected8.2.0affected8.1.2affected8.1.1affected8.1.0affected8.0.1affected8.0.0affected7.88.1affected7.88.0affected7.87.0affected7.86.0affected7.85.0affected7.84.0affected7.83.1affected7.83.0affected7.82.0affected7.81.0affected7.80.0affected7.79.1affected7.79.0affected7.78.0affected7.77.0affected7.76.1affected7.76.0affected7.75.0affected7.74.0affected7.73.0affected7.72.0affected7.71.1affected7.71.0affected7.70.0affected7.69.1affected7.69.0affected7.68.0affected7.67.0affected7.66.0affected7.65.3affected7.65.2affected7.65.1affected7.65.0affected7.64.1affected7.64.0affected7.63.0affected7.62.0affected7.61.1affected7.61.0affected7.60.0affected7.59.0affected7.58.0affected7.57.0affected7.56.1affected7.56.0affected7.55.1affected7.55.0affected7.54.1affected7.54.0affected7.53.1affected7.53.0affected7.52.1affected7.52.0affected7.51.0affected7.50.3affected7.50.2affected7.50.1affected7.50.0affected7.49.1affected7.49.0affected7.48.0affected7.47.1affected7.47.0affected7.46.0affected7.45.0affected7.44.0affected7.43.0affected7.42.1affected7.42.0affected7.41.0affected7.40.0affected7.39.0affected7.38.0affected7.37.1affected7.37.0affected7.36.0affected7.35.0affected7.34.0affected7.33.0affected7.32.0affected7.31.0affected7.30.0affected7.29.0affected7.28.1affected7.28.0affected7.27.0affected7.26.0affected7.25.0affected7.24.0affected7.23.1affected7.23.0affected7.22.0affected7.21.7affected7.21.6affected7.21.5affected7.21.4affected7.21.3affected7.21.2affected7.21.1affected7.21.0affected7.20.1affected7.20.0affected7.19.7affected7.19.6affected7.19.5affected7.19.4affected7.19.3affected7.19.2affected7.19.1affected7.19.0affected7.18.2affected7.18.1affected7.18.0affected7.17.1affected7.17.0affected7.16.4affected7.16.3affected7.16.2affected7.16.1affected7.16.0affected7.15.5affected7.15.4affected7.15.3affected7.15.2affected7.15.1affected7.15.0affected7.14.1affected7.14.0affected7.13.2affected7.13.1affected7.13.0affected7.12.3affected7.12.2affected7.12.1affected7.12.0affected7.11.2affected7.11.1affected7.11.0affected7.10.8affected7.10.7affected7.10.6affected7.10.5affected7.10.4affected7.10.3affected7.10.2affected7.10.1affected7.10affected7.9.8affected7.9.7affected7.9.6affected7.9.5affected7.9.4affected7.9.3affected7.9.2affected7.9.1affected7.9affected7.8.1affected7.8affected7.7.3affected7.7.2affected7.7.1affected7.7affected