drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-2890-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 15.10 |
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Datum: |
Di, 2. Februar 2016, 08:17 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8569
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7550
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8787
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8374
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7513
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-7446
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8575
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7990
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8543 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2890-1 February 02, 2016
linux vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.10
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)
It was discovered that the Linux kernel keyring subsystem contained a race between read and revoke operations. A local attacker could use this to cause a denial of service (system crash). (CVE-2015-7550)
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)
éæ°žå discovered that the Linux kernel networking implementation did not validate protocol identifiers for certain protocol families, A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2015-8543)
Dmitry Vyukov discovered that the pptp implementation in the Linux kernel did not verify an address length when setting up a socket. A local attacker could use this to craft an application that exposed sensitive information from kernel memory. (CVE-2015-8569)
David Miller discovered that the Bluetooth implementation in the Linux kernel did not properly validate the socket address length for Synchronous Connection-Oriented (SCO) sockets. A local attacker could use this to expose sensitive information. (CVE-2015-8575)
It was discovered that the netfilter Network Address Translation (NAT) implementation did not ensure that data structures were initialized when handling IPv4 addresses. An attacker could use this to cause a denial of service (system crash). (CVE-2015-8787)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 15.10: linux-image-4.2.0-27-generic 4.2.0-27.32 linux-image-4.2.0-27-generic-lpae 4.2.0-27.32 linux-image-4.2.0-27-lowlatency 4.2.0-27.32 linux-image-4.2.0-27-powerpc-e500mc 4.2.0-27.32 linux-image-4.2.0-27-powerpc-smp 4.2.0-27.32 linux-image-4.2.0-27-powerpc64-emb 4.2.0-27.32 linux-image-4.2.0-27-powerpc64-smp 4.2.0-27.32
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-2890-1 CVE-2013-7446, CVE-2015-7513, CVE-2015-7550, CVE-2015-7990, CVE-2015-8374, CVE-2015-8543, CVE-2015-8569, CVE-2015-8575, CVE-2015-8787
Package Information: https://launchpad.net/ubuntu/+source/linux/4.2.0-27.32
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