drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-3053-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS |
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Datum: |
Mi, 10. August 2016, 14:15 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4470
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1237
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4794
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5243 |
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Applikationen: |
Linux |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============2039166064414969117== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="J0EkxomH1iDPPvIeadmDouKSfenTQDj0m"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --J0EkxomH1iDPPvIeadmDouKSfenTQDj0m Content-Type: multipart/mixed; boundary="Op5gG1ms1PT4AS8iReOp7dlMCMVRoEF91" From: john.johansen@canonical.com Reply-To: security@ubuntu.com To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <e307403c-e215-1046-85a4-076970d5d90e@canonical.com> Subject: [USN-3053-1] Linux kernel (Vivid HWE) vulnerabilities
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========================================================================== Ubuntu Security Notice USN-3053-1 August 10, 2016
linux-lts-vivid vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux-lts-vivid: Linux hardware enablement kernel from Vivid for Trusty
Details:
A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. (CVE-2016-1237)
It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after an error condition occurred. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-4470)
Sasha Levin discovered that a use-after-free existed in the percpu allocator in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-4794)
Kangjie Lu discovered an information leak in the netlink implementation of the Linux kernel. A local attacker could use this to obtain sensitive information from kernel memory. (CVE-2016-5243)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04 LTS: linux-image-3.19.0-66-generic 3.19.0-66.74~14.04.1 linux-image-3.19.0-66-generic-lpae 3.19.0-66.74~14.04.1 linux-image-3.19.0-66-lowlatency 3.19.0-66.74~14.04.1 linux-image-3.19.0-66-powerpc-e500mc 3.19.0-66.74~14.04.1 linux-image-3.19.0-66-powerpc-smp 3.19.0-66.74~14.04.1 linux-image-3.19.0-66-powerpc64-emb 3.19.0-66.74~14.04.1 linux-image-3.19.0-66-powerpc64-smp 3.19.0-66.74~14.04.1
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-3053-1 CVE-2016-1237, CVE-2016-4470, CVE-2016-4794, CVE-2016-5243
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-vivid/3.19.0-66.74~14.04.1
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