Improper Validation of Specified Quantity in Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input in the rsa key exchange process when handling an extremely short premaster secret sent to a server using an RSA key backed by a PKCS11 token. An attacker can access sensitive informatio...

CVE-2026-5260

A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure...

CVE-2026-5260 Gnutls: gnutls: information disclosure via heap overread in rsa key exchange

A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure...

GHSA-52XF-5P2M-9WRV s2n-tls has a potentially observable differences in RSA premaster secret handling

When receiving a message from a client that sent an invalid RSA premaster secret, an issue in s2n-tls results in the server performing additional processing when the premaster secret contains an incorrect client hello version. While no practical attack on s2n-tls has been demonstrated, this cause...

s2n-tls has a potentially observable differences in RSA premaster secret handling

When receiving a message from a client that sent an invalid RSA premaster secret, an issue in s2n-tls results in the server performing additional processing when the premaster secret contains an incorrect client hello version. While no practical attack on s2n-tls has been demonstrated, this cause...

OESA-2023-1431 edk2 security update

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. Security Fixes: A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbach...

New Raccoon Attack Could Let Attackers Break SSL/TLS Encryption

A group of researchers has detailed a new timing vulnerability in Transport Layer Security TLS protocol that could potentially allow an attacker to break the encryption and read sensitive communication under specific conditions. Dubbed "Raccoon Attack," the server-side attack exploits a...

CVE-2 0 1 4-6 3 2 1 schannel heap overflow vulnerability analysis-vulnerability warning-the black bar safety net

0x00 background MS14-0 6 6 CVE-2 0 1 4-6 3 2 1 is present in Microsoft's schannel. dll in the TLS heap buffer overflow vulnerability. The following principles and poc structure for analysis. 0x01 SSL/TLS principle description Https is based on SSL/TLS Http, all http data is in the SSL/TLS Protoco...

SSL/TLS implementations disclose side channel information via PKCS #1 v1.5 version number extension

Overview SSL/TLS implementations that respond distinctively to an incorrect PKCS 1 v1.5 encoded SSL/TLS version number expose the premaster secret to a modified Bleichenbacher attack. An attacker could decrypt a given SSL/TLS session or forge a signature on behalf of a vulnerable application's...