libssh: Incorrect Return Code Handling in ssh_kdf() in libssh

A flaw was found in libssh versions built with OpenSSL versions older than 3.0, specifically in the sshkdf function responsible for key derivation. Due to inconsistent interpretation of return values where OpenSSL uses 0 to indicate failure and libssh uses 0 for success—the function may mistakenl...

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 server key agreement group selection when the server configuration includes the 'DEFAULT' keyword. An attacker can influence the negotiation to u...

AZL-56761 CVE-2024-12797 affecting package cloud-hypervisor-cvm for versions less than 38.0.72.2-5

Issue summary: Clients using RFC7250 Raw Public Keys RPKs to authenticate a server may fail to notice that the server was not authenticated, because handshakes don't abort as expected when the SSLVERIFYPEER verification mode is set. Impact summary: TLS and DTLS connections using raw public keys m...

UBUNTU-CVE-2024-13454

Weak encryption algorithm in Easy-RSA version 3.0.5 through 3.1.7 allows a local attacker to more easily bruteforce the private CA key when created using OpenSSL 3...

DEBIAN-CVE-2019-0190

A bug exists in the way modssl handled client renegotiations. A remote attacker could send a carefully crafted request that would cause modssl to enter a loop leading to a denial of service. This bug can be only triggered with Apache HTTP Server version 2.4.37 when using OpenSSL version 1.1.1 or...