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This update provides mitigations for the Spectre v4 variant in x86-based micro processors. On Intel CPUs this requires updated microcode which is currently not released publicly . For servers with AMD CPUs no microcode update is needed, please refer to https://xenbits.xen.org/xsa/advisory-263.html for further information.

Several vulnerabilities were discovered in qemu, a fast processor emulator. CVE-2017-15038 Tuomas Tynkkynen discovered an information leak in 9pfs. CVE-2017-15119 Eric Blake discovered that the NBD server insufficiently restricts large option requests, resulting in denial of service. CVE-2017-15124 Daniel Berrange discovered that the integrated VNC server insufficiently restricted memory allocatio ...

This update provides mitigations for the "lazy FPU" vulnerability affecting a range of Intel CPUs, which could result in leaking CPU register states belonging to another vCPU previously scheduled on the same CPU. For additional information please refer to https://xenbits.xen.org/xsa/advisory-267.html

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation or denial of service. CVE-2018-5390 Juha-Matti Tilli discovered that a remote attacker can trigger the worst case code paths for TCP stream reassembly with low rates of specially crafted packets leading to remote denial of service. CVE-2018-13405 Jann Horn discovered that the inode_init_owner f ...

This update ships updated CPU microcode for some types of Intel CPUs and provides SSBD support and fixes for "Spectre v3a".

This update provides mitigations for the "L1 Terminal Fault" vulnerability affecting a range of Intel CPUs. For additional information please refer to https://xenbits.xen.org/xsa/advisory-273.html. The microcode updates mentioned there are not yet available in a form distributable by Debian. In addition two denial of service vulnerabilities have been fixed .

Multiple researchers have discovered a vulnerability in the way the Intel processor designs have implemented speculative execution of instructions in combination with handling of page-faults. This flaw could allow an attacker controlling an unprivileged process to read memory from arbitrary addresses, including from the kernel and all other processes running on the system or cross guest/host boun ...

This update ships updated CPU microcode for additional models of Intel CPUs which were not yet covered by the Intel microcode update released as DSA-4273-1

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2018-6554 A memory leak in the irda_bind function in the irda subsystem was discovered. A local user can take advantage of this flaw to cause a denial of service . CVE-2018-6555 A flaw was discovered in the irda_setsockopt function in the irda subsys ...

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2017-5715 Multiple researchers have discovered a vulnerability in various processors supporting speculative execution, enabling an attacker controlling an unprivileged process to read memory from arbitrary addresses, including from the kernel and all ...


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