Atualização de segurança
No total são 7 correções criticas liberadas entre os dias 16 e 17 de março de 2020 que vocẽ tem que fazer o mais rápido possível.
Confira abaixo.
USN-4305-1: ICU vulnerability
André Bargull discovered that ICU incorrectly handled certain strings. An attacker could possibly use this issue to execute arbitrary code.
17 March 2020 | ubuntu-19.10, ubuntu-18.04-lts, ubuntu-16.04-lts, ubuntu-14.04-esm, ubuntu-12.04-esm
USN-4304-1: Ceph vulnerability
Or Friedman discovered that Ceph incorrectly handled disconnects. A remote authenticated attacker could possibly use this issue to cause Ceph to consume resources, leading to a denial of service.
17 March 2020 | ubuntu-19.10, ubuntu-18.04-lts
USN-4303-1: Linux kernel vulnerability
Paulo Bonzini discovered that the KVM hypervisor implementation in the Linux kernel could improperly let a nested (level 2) guest access the resources of a parent (level 1) guest in certain situations. An attacker could use this to expose sensitive information.
17 March 2020 | ubuntu-16.04-lts
USN-4303-2: Linux kernel (HWE) vulnerability
USN-4303-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. Paulo Bonzini discovered that the KVM hypervisor implementation in the Linux kernel could improperly let a nested (level 2) guest…
17 March 2020 | ubuntu-14.04-esm
USN-4302-1: Linux kernel vulnerabilities
Paulo Bonzini discovered that the KVM hypervisor implementation in the Linux kernel could improperly let a nested (level 2) guest access the resources of a parent (level 1) guest in certain situations. An attacker could use this to expose sensitive information. (CVE-2020-2732) Gregory Herrero discovered that the fix for CVE-2019-14615 to address…
17 March 2020 | ubuntu-18.04-lts, ubuntu-16.04-lts
USN-4301-1: Linux kernel vulnerabilities
It was discovered that the KVM implementation in the Linux kernel, when paravirtual TLB flushes are enabled in guests, the hypervisor in some situations could miss deferred TLB flushes or otherwise mishandle them. An attacker in a guest VM could use this to expose sensitive information (read memory from another guest VM). (CVE-2019-3016) Paulo…
16 March 2020 | ubuntu-18.04-lts
USN-4300-1: Linux kernel vulnerabilities
It was discovered that the KVM implementation in the Linux kernel, when paravirtual TLB flushes are enabled in guests, the hypervisor in some situations could miss deferred TLB flushes or otherwise mishandle them. An attacker in a guest VM could use this to expose sensitive information (read memory from another guest VM). (CVE-2019-3016) Paulo…
16 March 2020 | ubuntu-19.10, ubuntu-18.04-lts
Atualizar
Para atualizar o seu sistema operacional ubuntu execute os comandos abaixo no terminal.
Atualize a lista de pacotes.
sudo apt update
Atualize o sistema.
sudo apt full-upgrade
mantenha seu sistema operacional sempre atualizado.
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olá, seja bem vindo ao Linux Dicas e suporte !!