CVE-2018-10846 – gnutls: "Just in Time" PRIME + PROBE cache-based side channel attack can lead to plaintext recovery

https://notcve.org/view.php?id=CVE-2018-10846

A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in combination with Lucky-13 attack to recover plain text using crafted packets. Se ha detectado un canal lateral basado en memoria caché en la implementación GnuTLS que conduce a un ataque de recuperación de texto plano a través de una máquina virtual. Un atacante podría utilizar una combinación de un ataque "Just in Time" Prime+probe con un ataque Lucky-13 para recuperar texto plano usando paquetes manipulados. A cache-based side channel attack was found in the way GnuTLS implements CBC-mode cipher suites. • http://www.securityfocus.com/bid/105138 https://access.redhat.com/errata/RHSA-2018:3050 https://access.redhat.com/errata/RHSA-2018:3505 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10846 https://eprint.iacr.org/2018/747 https://gitlab.com/gnutls/gnutls/merge_requests/657 https://lists.debian.org/debian-lts-announce/2018/10/msg00022.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ https://lists.fedor • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-385: Covert Timing Channel •