SECURITY

USN-6073-8: Nova regression USN-6073-3 fixed a vulnerability in Nova. Unfortunately the update introduced a regression with detaching volumes. The security fix has been removed pending further investigation. We apologize for the inconvenience. Original advisory details: Jan Wasilewski and Gorka Eguileor discovered that Nova incorrectly handled deleted volume attachments. An authenticated user or attacker could possibly use this issue to gain access to sensitive information. This update may require configuration changes to be completely effective, please see the upstream advisory for more information: https://security.openstack.org/ossa/OSSA-2023-003.html Source: USN-6073-8: Nova regression

USN-6099-1: ncurses vulnerabilities It was discovered that ncurses was incorrectly performing bounds checks when processing invalid hashcodes. An attacker could possibly use this issue to cause a denial of service or to expose sensitive information. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-17594) It was discovered that ncurses was incorrectly handling end-of-string characters when processing terminfo and termcap files. An attacker could possibly use this issue to cause a denial of service or to expose sensitive information. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-17595) It was discovered that ncurses was incorrectly handling end-of-string characters when converting between termcap and terminfo formats. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-39537) It was discovered that ncurses was incorrectly performing bounds [ more… ]

USN-6073-7: Glance_store regression USN-6073-2 fixed a vulnerability in Glance_store. Unfortunately the update introduced a regression with detaching volumes. The security fix has been removed pending further investigation. We apologize for the inconvenience. Original advisory details: Jan Wasilewski and Gorka Eguileor discovered that Glance_store incorrectly handled deleted volume attachments. An authenticated user or attacker could possibly use this issue to gain access to sensitive information. This update may require configuration changes to be completely effective, please see the upstream advisory for more information: https://security.openstack.org/ossa/OSSA-2023-003.html Source: USN-6073-7: Glance_store regression

USN-6073-6: Cinder regression USN-6073-1 fixed a vulnerability in Cinder. Unfortunately the update introduced a regression with detaching volumes. The security fix has been removed pending further investigation. We apologize for the inconvenience. Original advisory details: Jan Wasilewski and Gorka Eguileor discovered that Cinder incorrectly handled deleted volume attachments. An authenticated user or attacker could possibly use this issue to gain access to sensitive information. This update may require configuration changes to be completely effective, please see the upstream advisory for more information: https://security.openstack.org/ossa/OSSA-2023-003.html Source: USN-6073-6: Cinder regression

USN-6096-1: Linux kernel vulnerabilities It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. (CVE-2022-27672) Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux kernel contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-36280) Zheng Wang discovered that the Intel i915 graphics driver in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-3707) Haowei Yan discovered that a race condition existed in the Layer 2 Tunneling Protocol (L2TP) implementation in the Linux kernel. A local attacker could possibly use this [ more… ]