drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-4363-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS |
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Datum: |
Di, 19. Mai 2020, 07:04 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11494
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11669
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12657
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11565 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-4363-1 May 18, 2020
linux, linux-aws, linux-aws-hwe, linux-gcp, linux-gke-4.15, linux-hwe, linux-oem, linux-oracle, linux-snapdragon vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-gke-4.15: Linux kernel for Google Container Engine (GKE) systems - linux-oem: Linux kernel for OEM systems - linux-oracle: Linux kernel for Oracle Cloud systems - linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe: Linux hardware enablement (HWE) kernel
Details:
It was discovered that the Serial CAN interface driver in the Linux kernel did not properly initialize data. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-11494)
It was discovered that the linux kernel did not properly validate certain mount options to the tmpfs virtual memory file system. A local attacker with the ability to specify mount options could use this to cause a denial of service (system crash). (CVE-2020-11565)
David Gibson discovered that the Linux kernel on Power9 CPUs did not properly save and restore Authority Mask registers state in some situations. A local attacker in a guest VM could use this to cause a denial of service (host system crash). (CVE-2020-11669)
It was discovered that the block layer in the Linux kernel contained a race condition leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2020-12657)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: linux-image-4.15.0-101-generic 4.15.0-101.102 linux-image-4.15.0-101-generic-lpae 4.15.0-101.102 linux-image-4.15.0-101-lowlatency 4.15.0-101.102 linux-image-4.15.0-1039-oracle 4.15.0-1039.43 linux-image-4.15.0-1059-gke 4.15.0-1059.62 linux-image-4.15.0-1067-aws 4.15.0-1067.71 linux-image-4.15.0-1079-snapdragon 4.15.0-1079.86 linux-image-4.15.0-1081-oem 4.15.0-1081.91 linux-image-aws-lts-18.04 4.15.0.1067.70 linux-image-generic 4.15.0.101.91 linux-image-generic-lpae 4.15.0.101.91 linux-image-gke 4.15.0.1059.63 linux-image-gke-4.15 4.15.0.1059.63 linux-image-lowlatency 4.15.0.101.91 linux-image-oem 4.15.0.1081.85 linux-image-oracle-lts-18.04 4.15.0.1039.48 linux-image-powerpc-e500mc 4.15.0.101.91 linux-image-powerpc-smp 4.15.0.101.91 linux-image-powerpc64-emb 4.15.0.101.91 linux-image-powerpc64-smp 4.15.0.101.91 linux-image-snapdragon 4.15.0.1079.82 linux-image-virtual 4.15.0.101.91
Ubuntu 16.04 LTS: linux-image-4.15.0-101-generic 4.15.0-101.102~16.04.1 linux-image-4.15.0-101-generic-lpae 4.15.0-101.102~16.04.1 linux-image-4.15.0-101-lowlatency 4.15.0-101.102~16.04.1 linux-image-4.15.0-1039-oracle 4.15.0-1039.43~16.04.1 linux-image-4.15.0-1067-aws 4.15.0-1067.71~16.04.1 linux-image-4.15.0-1071-gcp 4.15.0-1071.81~16.04.1 linux-image-aws-hwe 4.15.0.1067.67 linux-image-gcp 4.15.0.1071.77 linux-image-generic-hwe-16.04 4.15.0.101.108 linux-image-generic-lpae-hwe-16.04 4.15.0.101.108 linux-image-gke 4.15.0.1071.77 linux-image-lowlatency-hwe-16.04 4.15.0.101.108 linux-image-oem 4.15.0.101.108 linux-image-oracle 4.15.0.1039.32 linux-image-virtual-hwe-16.04 4.15.0.101.108
After a standard system update you need to reboot your computer to make all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.
References: https://usn.ubuntu.com/4363-1 CVE-2020-11494, CVE-2020-11565, CVE-2020-11669, CVE-2020-12657
Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-101.102 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1067.71 https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1059.62 https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1081.91 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1039.43 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1079.86 https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1067.71~16.04.1 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1071.81~16.04.1 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-101.102~16.04.1 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1039.43~16.04.1
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