drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-2680-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 12.04 LTS |
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Datum: |
Fr, 24. Juli 2015, 08:04 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5366
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4692
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1805
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4700
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5364 |
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Applikationen: |
Linux |
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Originalnachricht |
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --K6LFhvbxV0aGm6wmBDtEV926SrHkOJPMm Content-Type: text/plain; charset=utf- Content-Transfer-Encoding: quoted-printable
========================================================================== Ubuntu Security Notice USN-2680-1 July 23, 2015
linux-lts-trusty vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux-lts-trusty: Linux hardware enablement kernel from Trusty
Details:
A flaw was discovered in the user space memory copying for the pipe iovecs in the Linux kernel. An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. (CVE-2015-1805)
A flaw was discovered in the kvm (kernel virtual machine) subsystem's kvm_apic_has_events function. A unprivileged local user could exploit this flaw to cause a denial of service (system crash). (CVE-2015-4692)
Daniel Borkmann reported a kernel crash in the Linux kernel's BPF filter JIT optimization. A local attacker could exploit this flaw to cause a denial of service (system crash). (CVE-2015-4700)
A flaw was discovered in how the Linux kernel handles invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums. (CVE-2015-5364)
A flaw was discovered in how the Linux kernel handles invalid UDP checksums. A remote attacker can cause a denial of service against applications that use epoll by injecting a single packet with an invalid checksum. (CVE-2015-5366)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 LTS: linux-image-3.13.0-58-generic 3.13.0-58.97~precise1 linux-image-3.13.0-58-generic-lpae 3.13.0-58.97~precise1
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. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.
References: http://www.ubuntu.com/usn/usn-2680-1 CVE-2015-1805, CVE-2015-4692, CVE-2015-4700, CVE-2015-5364, CVE-2015-5366
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-58.97~precise1
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