drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen von Code mit höheren Privilegien in Linux
Name: |
Ausführen von Code mit höheren Privilegien in Linux |
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ID: |
USN-4484-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.04 LTS |
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Datum: |
Mi, 2. September 2020, 07:33 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14356 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-4484-1 September 02, 2020
linux-hwe, linux-aws-5.3, linux-gke-5.3, linux-raspi2-5.3 vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
Summary:
The system could be made to crash or run programs as an administrator.
Software Description: - linux-aws-5.3: Linux kernel for Amazon Web Services (AWS) systems - linux-gke-5.3: Linux kernel for Google Container Engine (GKE) systems - linux-hwe: Linux hardware enablement (HWE) kernel - linux-raspi2-5.3: Linux kernel for Raspberry Pi (V8) systems
Details:
It was discovered that the cgroup v2 subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2020-14356)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: linux-image-5.3.0-1032-raspi2 5.3.0-1032.34 linux-image-5.3.0-1034-aws 5.3.0-1034.36 linux-image-5.3.0-1034-gke 5.3.0-1034.36 linux-image-5.3.0-66-generic 5.3.0-66.60 linux-image-5.3.0-66-lowlatency 5.3.0-66.60 linux-image-aws 5.3.0.1034.33 linux-image-gke-5.3 5.3.0.1034.19 linux-image-gkeop-5.3 5.3.0.66.123 linux-image-raspi2-hwe-18.04 5.3.0.1032.22
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/4484-1 CVE-2020-14356
Package Information: https://launchpad.net/ubuntu/+source/linux-aws-5.3/5.3.0-1034.36 https://launchpad.net/ubuntu/+source/linux-gke-5.3/5.3.0-1034.36 https://launchpad.net/ubuntu/+source/linux-hwe/5.3.0-66.60 https://launchpad.net/ubuntu/+source/linux-raspi2-5.3/5.3.0-1032.34
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