drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in libvirt
Name: |
Mehrere Probleme in libvirt |
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ID: |
USN-3576-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 17.10 |
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Datum: |
Mi, 21. Februar 2018, 07:03 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000256
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6764
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5748
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5008 |
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Applikationen: |
libvirt |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============6525746250204382046== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="vEsk1G6YFLgRijyaUo7bb3krvsTyXN6W2"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --vEsk1G6YFLgRijyaUo7bb3krvsTyXN6W2 Content-Type: multipart/mixed; boundary="huOOOyL6cdLjZMutBHGDKj0y2WbllapjP"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <90a8907a-f7ed-2854-335c-f2761c40e868@canonical.com> Subject: [USN-3576-1] libvirt vulnerabilities
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========================================================================== Ubuntu Security Notice USN-3576-1 February 20, 2018
libvirt vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in libvirt.
Software Description: - libvirt: Libvirt virtualization toolkit
Details:
Vivian Zhang and Christoph Anton Mitterer discovered that libvirt incorrectly disabled password authentication when the VNC password was set to an empty string. A remote attacker could possibly use this issue to bypass authentication, contrary to expectations. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-5008)
Daniel P. Berrange discovered that libvirt incorrectly handled validating SSL/TLS certificates. A remote attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 17.10. (CVE-2017-1000256)
Daniel P. Berrange and Peter Krempa discovered that libvirt incorrectly handled large QEMU replies. An attacker could possibly use this issue to cause libvirt to crash, resulting in a denial of service. (CVE-2018-5748)
Pedro Sampaio discovered that libvirt incorrectly handled the libnss_dns.so module. An attacker in a libvirt_lxc session could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2018-6764)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.10: libvirt-bin 3.6.0-1ubuntu6.3 libvirt0 3.6.0-1ubuntu6.3
Ubuntu 16.04 LTS: libvirt-bin 1.3.1-1ubuntu10.19 libvirt0 1.3.1-1ubuntu10.19
Ubuntu 14.04 LTS: libvirt-bin 1.2.2-0ubuntu13.1.26 libvirt0 1.2.2-0ubuntu13.1.26
After a standard system update you need to reboot your computer to make all the necessary changes.
References: https://www.ubuntu.com/usn/usn-3576-1 CVE-2016-5008, CVE-2017-1000256, CVE-2018-5748, CVE-2018-6764
Package Information: https://launchpad.net/ubuntu/+source/libvirt/3.6.0-1ubuntu6.3 https://launchpad.net/ubuntu/+source/libvirt/1.3.1-1ubuntu10.19 https://launchpad.net/ubuntu/+source/libvirt/1.2.2-0ubuntu13.1.26
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