CURL-CVE-2023-27538

vendorUSosv

SSH connection too eager reuse still

view advisory published 2023-03-20Licence: per source

libcurl would reuse a previously created connection even when an SSH 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, two SSH settings were left out from the configuration match checks, making them match too easily.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2023-27538USmedium5.5—
An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, w…
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