[월:] 2023년 05월

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… ]

USN-6095-1: Linux kernel vulnerabilities Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did not properly implement speculative execution barriers in usercopy functions in certain situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2023-0459) Xingyuan Mo discovered that the x86 KVM implementation in the Linux kernel did not properly initialize some data structures. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2023-1513) It was discovered that a use-after-free vulnerability existed in the iSCSI TCP implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-2162) It was discovered that the NET/ROM protocol implementation in the Linux kernel contained a race condition in some situations, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial [ more… ]