CVE-2025-11935
Forward Secrecy Violation in WolfSSL TLS 1.3
Summary
Forward Secrecy Violation in WolfSSL TLS 1.3
Original description
The description as published by the source.
With TLS 1.3 pre-shared key (PSK) a malicious or faulty server could ignore the request for PFS (perfect forward secrecy) and the client would continue on with the connection using PSK without PFS. This happened when a server responded to a ClientHello containing psk_dhe_ke without a key_share extension. The re-use of an authenticated PSK connection that on the clients side unexpectedly did not have PFS, reduces the security of the connection.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-11935 wolfssl
- Ubuntu UBUNTU-CVE-2025-11935 wolfssl
References
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- patch github.com
- web wolfssl.com