drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Preisgabe von Informationen in QEMU
Name: |
Preisgabe von Informationen in QEMU |
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ID: |
USN-3679-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 17.10, Ubuntu 18.04 LTS |
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Datum: |
Di, 12. Juni 2018, 14:52 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3639 |
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Applikationen: |
QEMU |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============2936513603305743416== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="NMUrOd9gWvYZEyLRqKzPtuNA7KdMFxHt7"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --NMUrOd9gWvYZEyLRqKzPtuNA7KdMFxHt7 Content-Type: multipart/mixed; boundary="OCYBqK0jp8aKgEepqc5rBpZAVabn3rv0w"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <5144c791-a3d7-5f76-7fc9-30b6a0de30d2@canonical.com> Subject: [USN-3679-1] QEMU update
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========================================================================== Ubuntu Security Notice USN-3679-1 June 12, 2018
qemu update ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS - Ubuntu 17.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS
Summary:
Side channel execution mitigations were added to QEMU.
Software Description: - qemu: Machine emulator and virtualizer
Details:
Ken Johnson and Jann Horn independently discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via sidechannel attacks. An attacker in the guest could use this to expose sensitive guest information, including kernel memory. This update allows QEMU to expose new CPU features added by AMD microcode updates to guests on amd64 and i386.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.3 qemu-system 1:2.11+dfsg-1ubuntu7.3 qemu-system-x86 1:2.11+dfsg-1ubuntu7.3
Ubuntu 17.10: qemu 1:2.10+dfsg-0ubuntu3.8 qemu-system 1:2.10+dfsg-0ubuntu3.8 qemu-system-x86 1:2.10+dfsg-0ubuntu3.8
Ubuntu 16.04 LTS: qemu 1:2.5+dfsg-5ubuntu10.30 qemu-system 1:2.5+dfsg-5ubuntu10.30 qemu-system-x86 1:2.5+dfsg-5ubuntu10.30
Ubuntu 14.04 LTS: qemu 2.0.0+dfsg-2ubuntu1.43 qemu-system 2.0.0+dfsg-2ubuntu1.43 qemu-system-x86 2.0.0+dfsg-2ubuntu1.43
After a standard system update you need to restart all QEMU virtual machines to make all the necessary changes.
References: https://usn.ubuntu.com/usn/usn-3679-1 CVE-2018-3639
Package Information: https://launchpad.net/ubuntu/+source/qemu/1:2.11+dfsg-1ubuntu7.3 https://launchpad.net/ubuntu/+source/qemu/1:2.10+dfsg-0ubuntu3.8 https://launchpad.net/ubuntu/+source/qemu/1:2.5+dfsg-5ubuntu10.30 https://launchpad.net/ubuntu/+source/qemu/2.0.0+dfsg-2ubuntu1.43
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