drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-2887-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS |
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Datum: |
Di, 2. Februar 2016, 07:51 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7990
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-7446
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7513
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8374 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2887-1 February 02, 2016
linux vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux: Linux kernel
Details:
It was discovered that a use-after-free vulnerability existed in the AF_UNIX implementation in the Linux kernel. A local attacker could use crafted epoll_ctl calls to cause a denial of service (system crash) or expose sensitive information. (CVE-2013-7446)
It was discovered that the KVM implementation in the Linux kernel did not properly restore the values of the Programmable Interrupt Timer (PIT). A user-assisted attacker in a KVM guest could cause a denial of service in the host (system crash). (CVE-2015-7513)
Sasha Levin discovered that the Reliable Datagram Sockets (RDS) implementation in the Linux kernel had a race condition when checking whether a socket was bound or not. A local attacker could use this to cause a denial of service (system crash). (CVE-2015-7990)
It was discovered that the Btrfs implementation in the Linux kernel incorrectly handled compressed inline extants on truncation. A local attacker could use this to expose sensitive information. (CVE-2015-8374)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04 LTS: linux-image-3.13.0-77-generic 3.13.0-77.121 linux-image-3.13.0-77-generic-lpae 3.13.0-77.121 linux-image-3.13.0-77-lowlatency 3.13.0-77.121 linux-image-3.13.0-77-powerpc-e500 3.13.0-77.121 linux-image-3.13.0-77-powerpc-e500mc 3.13.0-77.121 linux-image-3.13.0-77-powerpc-smp 3.13.0-77.121 linux-image-3.13.0-77-powerpc64-emb 3.13.0-77.121 linux-image-3.13.0-77-powerpc64-smp 3.13.0-77.121
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: http://www.ubuntu.com/usn/usn-2887-1 CVE-2013-7446, CVE-2015-7513, CVE-2015-7990, CVE-2015-8374
Package Information: https://launchpad.net/ubuntu/+source/linux/3.13.0-77.121
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