Ubuntu security

USN-5851-1: Linux kernel vulnerabilities It was discovered that a memory leak existed in the Unix domain socket implementation of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3543) It was discovered that the Bluetooth HCI implementation in the Linux kernel did not properly deallocate memory in some situations. An attacker could possibly use this cause a denial of service (memory exhaustion). (CVE-2022-3619) It was discovered that the hugetlb implementation in the Linux kernel contained a race condition in some situations. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2022-3623) It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking in some situations. A physically proximate attacker could use this [ more… ]

USN-5835-5: Nova vulnerability USN-5835-3 fixed vulnerabilities in Nova. This update provides the corresponding updates for Ubuntu 18.04 LTS. Original advisory details: Guillaume Espanel, Pierre Libeau, Arnaud Morin, and Damien Rannou discovered that Nova incorrectly handled VMDK image processing. An authenticated attacker could possibly supply a specially crafted VMDK flat image and obtain arbitrary files from the server containing sensitive information. Source: USN-5835-5: Nova vulnerability

USN-5850-1: Linux kernel vulnerabilities It was discovered that the Bluetooth HCI implementation in the Linux kernel did not properly deallocate memory in some situations. An attacker could possibly use this cause a denial of service (memory exhaustion). (CVE-2022-3619) It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3628) It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3640) Tamás Koczka discovered that the Bluetooth L2CAP implementation in the Linux kernel did [ more… ]

USN-5835-4: Cinder vulnerability USN-5835-1 fixed vulnerabilities in Cinder. This update provides the corresponding updates for Ubuntu 18.04 LTS. In addition, a regression was fixed for Ubuntu 20.04 LTS. Original advisory details: Guillaume Espanel, Pierre Libeau, Arnaud Morin, and Damien Rannou discovered that Cinder incorrectly handled VMDK image processing. An authenticated attacker could possibly supply a specially crafted VMDK flat image and obtain arbitrary files from the server containing sensitive information. Source: USN-5835-4: Cinder vulnerability

USN-5849-1: Heimdal vulnerabilities Helmut Grohne discovered that Heimdal GSSAPI incorrectly handled logical conditions that are related to memory management operations. An attacker could possibly use this issue to cause a denial of service. Source: USN-5849-1: Heimdal vulnerabilities