Veille CVE

Semaine du 17 octobre au 23 octobre 2022

2 CVE

Critique 1 Élevée 1 Moyenne 0 Faible 0 Non évaluée 0 Tri : plus récentes
  1. CVE-2022-41352 9.8 Critique Exploitée Rançongiciel

    Synacor zimbra collaboration suite

    An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole (extraction to /opt/zimbra/jetty/webapps/zimbra/public) that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio. Also, pax is in the prerequisites of Zimbra on Ubuntu; however, pax is no longer part of a default Red Hat installation after RHEL 6 (or CentOS 6). Once pax is installed, amavis automatically prefers it over cpio.

  2. CVE-2021-3493 7.8 Élevée Exploitée

    Ubuntu linux kernel · Canonical ubuntu linux

    The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow unprivileged overlay mounts, an attacker could use this to gain elevated privileges.