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CVE-2021-22924

Description

libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate. #### Notes Author| Note ---|--- [mdeslaur](<https://launchpad.net/~mdeslaur>) | introduced in 7.10.4


Affected Package


OS OS Version Package Name Package Version
ubuntu 20.04 curl 7.68.0-1ubuntu2.6
ubuntu 21.04 curl 7.74.0-1ubuntu2.1
ubuntu 21.10 curl 7.74.0-1.2ubuntu4
ubuntu 22.04 curl 7.74.0-1.2ubuntu4
ubuntu upstream curl 7.74.0-1.2ubuntu4
ubuntu 14.04 curl any
ubuntu upstream curl 7.78.0
ubuntu 16.04 curl any

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