drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-3161-3 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS |
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Datum: |
Mi, 21. Dezember 2016, 06:53 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8645
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9555
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8633
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7425
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9178
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7097
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7042
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8630
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8658
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8964
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6213
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4568 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3161-3 December 20, 2016
linux-raspi2 vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux-raspi2: Linux kernel for Raspberry Pi 2
Details:
Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the TTY implementation in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2015-8964)
It was discovered that the Video For Linux Two (v4l2) implementation in the Linux kernel did not properly handle multiple planes when processing a VIDIOC_DQBUF ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-4568)
CAI Qian discovered that shared bind mounts in a mount namespace exponentially added entries without restriction to the Linux kernel's mount table. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6213)
Ondrej Kozina discovered that the keyring interface in the Linux kernel contained a buffer overflow when displaying timeout events via the /proc/keys interface. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-7042)
Andreas Gruenbacher and Jan Kara discovered that the filesystem implementation in the Linux kernel did not clear the setgid bit during a setxattr call. A local attacker could use this to possibly elevate group privileges. (CVE-2016-7097)
Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service (system crash) or possibly gain privileges. (CVE-2016-7425)
It was discovered that the KVM implementation for x86/x86_64 in the Linux kernel could dereference a null pointer. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the KVM host. (CVE-2016-8630)
Eyal Itkin discovered that the IP over IEEE 1394 (FireWire) implementation in the Linux kernel contained a buffer overflow when handling fragmented packets. A remote attacker could use this to possibly execute arbitrary code with administrative privileges. (CVE-2016-8633)
Marco Grassi discovered that the TCP implementation in the Linux kernel mishandles socket buffer (skb) truncation. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-8645)
Daxing Guo discovered a stack-based buffer overflow in the Broadcom IEEE802.11n FullMAC driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly gain privileges. (CVE-2016-8658)
It was discovered that an information leak existed in __get_user_asm_ex() in the Linux kernel. A local attacker could use this to expose sensitive information. (CVE-2016-9178)
Andrey Konovalov discovered that the SCTP implementation in the Linux kernel improperly handled validation of incoming data. A remote attacker could use this to cause a denial of service (system crash). (CVE-2016-9555)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 LTS: linux-image-4.4.0-1038-raspi2 4.4.0-1038.45 linux-image-raspi2 4.4.0.1038.37
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-3161-3 http://www.ubuntu.com/usn/usn-3161-1 CVE-2015-8964, CVE-2016-4568, CVE-2016-6213, CVE-2016-7042, CVE-2016-7097, CVE-2016-7425, CVE-2016-8630, CVE-2016-8633, CVE-2016-8645, CVE-2016-8658, CVE-2016-9178, CVE-2016-9555
Package Information: https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1038.45
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