drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux (Aktualisierung)
Name: |
Mehrere Probleme in Linux (Aktualisierung) |
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ID: |
USN-3775-2 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 12.04 ESM |
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Datum: |
Di, 2. Oktober 2018, 06:25 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6555
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15594
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15572
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14634
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14633
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6554 |
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Applikationen: |
Linux |
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Update von: |
Mehrere Probleme in Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3775-2 October 01, 2018
linux-lts-trusty vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM
Details:
USN-3775-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 ESM.
It was discovered that the paravirtualization implementation in the Linux kernel did not properly handle some indirect calls, reducing the effectiveness of Spectre v2 mitigations for paravirtual guests. A local attacker could use this to expose sensitive information. (CVE-2018-15594)
It was discovered that microprocessors utilizing speculative execution and prediction of return addresses via Return Stack Buffer (RSB) may allow unauthorized memory reads via sidechannel attacks. An attacker could use this to expose sensitive information. (CVE-2018-15572)
It was discovered that an integer overflow vulnerability existed in the Linux kernel when loading an executable to run. A local attacker could use this to gain administrative privileges. (CVE-2018-14634)
It was discovered that a stack-based buffer overflow existed in the iSCSI target implementation of the Linux kernel. A remote attacker could use this to cause a denial of service (system crash). (CVE-2018-14633)
It was discovered that a memory leak existed in the IRDA subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2018-6554)
It was discovered that a use-after-free vulnerability existed in the IRDA implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-6555)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 ESM: linux-image-3.13.0-160-generic 3.13.0-160.210~precise1 linux-image-3.13.0-160-generic-lpae 3.13.0-160.210~precise1 linux-image-generic-lpae-lts-trusty 3.13.0.160.150 linux-image-generic-lts-trusty 3.13.0.160.150
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/usn/usn-3775-2 https://usn.ubuntu.com/usn/usn-3775-1 CVE-2018-14633, CVE-2018-14634, CVE-2018-15572, CVE-2018-15594, CVE-2018-6554, CVE-2018-6555
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