Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

Overview Affected versions of this package are vulnerable to Selection of Less-Secure Algorithm During Negotiation 'Algorithm Downgrade' in the TLS 1.3 session resumption logic if the subsequent ClientHello negotiates TLS 1.2 back. An attacker can gain unauthorized access by impersonating a...

SUSE CVE-2024-5814

A malicious TLS1.2 server can force a TLS1.3 client with downgrade capability to use a ciphersuite that it did not agree to and achieve a successful connection. This is because, aside from the extensions, the client was skipping fully parsing the server hello...

UBUNTU-CVE-2024-28755

An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When an SSL context was reset with the mbedtlssslsessionreset API, the maximum TLS version to be negotiated was not restored to the configured one. An attacker was able to prevent an Mbed TLS server from establishing any TLS 1.3 connection,...

The vulnerability of the Network Security Services library lies in the possibility of reducing the version of the TLS protocol used, allowing attackers to gain access to protected information.

The vulnerability of the Network Security Services library relates to the possibility of reducing the version of the TLS protocol used. Exploiting this vulnerability can allow an attacker to gain access to protected information through a secondary channel...

openssl: TLS protocol downgrade attack

A flaw was found in the way OpenSSL handled fragmented handshake packets. A man-in-the-middle attacker could use this flaw to force a TLS/SSL server using OpenSSL to use TLS 1.0, even if both the client and the server supported newer protocol versions...