drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Linux
Name: |
Zwei Probleme in Linux |
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ID: |
USN-4577-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.04 LTS |
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Datum: |
Mi, 14. Oktober 2020, 07:27 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16120
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16119 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-4577-1 October 14, 2020
linux-hwe, linux-gke-5.0, linux-gke-5.3, linux-oem-osp1, linux-raspi2-5.3 vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux-gke-5.0: Linux kernel for Google Container Engine (GKE) systems - linux-gke-5.3: Linux kernel for Google Container Engine (GKE) systems - linux-hwe: Linux hardware enablement (HWE) kernel - linux-oem-osp1: Linux kernel for OEM systems - linux-raspi2-5.3: Linux kernel for Raspberry Pi (V8) systems
Details:
Hador Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-16119)
Giuseppe Scrivano discovered that the overlay file system in the Linux kernel did not properly perform permission checks in some situations. A local attacker could possibly use this to bypass intended restrictions and gain read access to restricted files. (CVE-2020-16120)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: linux-image-5.0.0-1049-gke 5.0.0-1049.50 linux-image-5.0.0-1069-oem-osp1 5.0.0-1069.75 linux-image-5.3.0-1035-raspi2 5.3.0-1035.37 linux-image-5.3.0-1038-gke 5.3.0-1038.40 linux-image-5.3.0-68-generic 5.3.0-68.63 linux-image-5.3.0-68-lowlatency 5.3.0-68.63 linux-image-gke-5.0 5.0.0.1049.33 linux-image-gke-5.3 5.3.0.1038.21 linux-image-gkeop-5.3 5.3.0.68.125 linux-image-oem-osp1 5.0.0.1069.67 linux-image-raspi2-hwe-18.04 5.3.0.1035.24
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/4577-1 CVE-2020-16119, CVE-2020-16120
Package Information: https://launchpad.net/ubuntu/+source/linux-gke-5.0/5.0.0-1049.50 https://launchpad.net/ubuntu/+source/linux-gke-5.3/5.3.0-1038.40 https://launchpad.net/ubuntu/+source/linux-hwe/5.3.0-68.63 https://launchpad.net/ubuntu/+source/linux-oem-osp1/5.0.0-1069.75 https://launchpad.net/ubuntu/+source/linux-raspi2-5.3/5.3.0-1035.37
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