USN-3872-1

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Source
https://ubuntu.com/security/notices/USN-3872-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3872-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-3872-1
Related
Published
2019-01-29T02:54:09.290168Z
Modified
2019-01-29T02:54:09.290168Z
Summary
linux-hwe vulnerabilities
Details
It was discovered that a race condition existed in the vsock address family implementation of the Linux kernel that could lead to a use-after-free condition. A local attacker in a guest virtual machine could use this to expose sensitive information (host machine kernel memory). (CVE-2018-14625)
Cfir Cohen discovered that a use-after-free vulnerability existed in the KVM implementation of the Linux kernel, when handling interrupts in environments where nested virtualization is in use (nested KVM virtualization is not enabled by default in Ubuntu kernels). A local attacker in a guest VM could possibly use this to gain administrative privileges in a host machine. (CVE-2018-16882)
Wei Wu discovered that the KVM implementation in the Linux kernel did not properly ensure that ioapics were initialized. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-19407)
It was discovered that the crypto subsystem of the Linux kernel leaked uninitialized memory to user space in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-19854)
References
Affected packages

Ubuntu:18.04:LTS / linux-hwe

Package

Name: linux-hwe
Purl: pkg:deb/ubuntu/linux-hwe?arch=src?distro=bionic
Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.18.0-14.15~18.04.1
Affected versions

4.*

4.18.0-13.14~18.04.1
Ecosystem specific

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