CVE-2021-43527

NSS (Network Security Services) versiones anteriores a 3.73 o 3.68.1, ESR son vulnerables a un desbordamiento de pila cuando manejan firmas DSA o RSA-PSS codificadas con DER. Es probable que las aplicaciones que usan NSS para manejar firmas codificadas en CMS, S/MIME, PKCS \#7 o PKCS \#12 estén afectadas. Las aplicaciones que usan NSS para la comprobación de certificados u otras funcionalidades de TLS, X.509, OCSP o CRL pueden verse afectadas, dependiendo de cómo configuren NSS. *Nota: Esta vulnerabilidad NO afecta a Mozilla Firefox. Sin embargo, se cree que los clientes de correo electrónico y los visores de PDF que usan NSS para la verificación de firmas, como Thunderbird, LibreOffice, Evolution y Evince, pueden verse afectados. Esta vulnerabilidad afecta a NSS versiones anteriores a 3.73 y NSS versiones anteriores a 3.68.1

A remote code execution flaw was found in the way NSS verifies certificates. This flaw allows an attacker posing as an SSL/TLS server to trigger this issue in a client application compiled with NSS when it tries to initiate an SSL/TLS connection. Similarly, a server application compiled with NSS, which processes client certificates, can receive a malicious certificate via a client, triggering the flaw. The highest threat to this vulnerability is confidentiality, integrity, as well as system availability.

Red Hat Advanced Cluster Management for Kubernetes 2.2.10 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console — with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which provide security fixes, bug fixes and container upgrades. Issues addressed include a bypass vulnerability.