drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in Linux
Name: |
Denial of Service in Linux |
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ID: |
USN-4710-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.04 LTS |
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Datum: |
Do, 28. Januar 2021, 16:08 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25704 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-4710-1 January 28, 2021
linux vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
Summary:
The system could be made to crash under certain conditions.
Software Description: - linux: Linux kernel
Details:
Kiyin (尹亮) discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged attacker could use this to cause a denial of service (kernel memory exhaustion).
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: linux-image-4.15.0-135-generic 4.15.0-135.139 linux-image-4.15.0-135-generic-lpae 4.15.0-135.139 linux-image-4.15.0-135-lowlatency 4.15.0-135.139 linux-image-generic 4.15.0.135.122 linux-image-generic-lpae 4.15.0.135.122 linux-image-lowlatency 4.15.0.135.122 linux-image-powerpc-e500mc 4.15.0.135.122 linux-image-powerpc-smp 4.15.0.135.122 linux-image-powerpc64-emb 4.15.0.135.122 linux-image-powerpc64-smp 4.15.0.135.122 linux-image-virtual 4.15.0.135.122
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/4710-1 CVE-2020-25704
Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-135.139
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