drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
|
ID: |
USN-3582-1 |
|
Distribution: |
Ubuntu |
|
Plattformen: |
Ubuntu 16.04 LTS |
|
Datum: |
Do, 22. Februar 2018, 15:00 |
|
Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12190
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15115
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5715
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17712
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8824
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8952 |
|
Applikationen: |
Linux |
|
Originalnachricht |
--===============7394112128445943622== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="cpvLTH7QU4gwfq3S" Content-Disposition: inline
--cpvLTH7QU4gwfq3S Content-Type: text/plain; charset=us-ascii Content-Disposition: inline
========================================================================== Ubuntu Security Notice USN-3582-1 February 22, 2018
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-kvm: Linux kernel for cloud environments - linux-raspi2: Linux kernel for Raspberry Pi 2 - linux-snapdragon: Linux kernel for Snapdragon processors
Details:
Mohamed Ghannam discovered that the IPv4 raw socket implementation in the Linux kernel contained a race condition leading to uninitialized pointer usage. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2017-17712)
Laurent Guerby discovered that the mbcache feature in the ext2 and ext4 filesystems in the Linux kernel improperly handled xattr block caching. A local attacker could use this to cause a denial of service. (CVE-2015-8952)
Vitaly Mayatskikh discovered that the SCSI subsystem in the Linux kernel did not properly track reference counts when merging buffers. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2017-12190)
ChunYu Wang discovered that a use-after-free vulnerability existed in the SCTP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code, (CVE-2017-15115)
Mohamed Ghannam discovered a use-after-free vulnerability in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-8824)
USN-3540-1 mitigated CVE-2017-5715 (Spectre Variant 2) for the amd64 architecture in Ubuntu 16.04 LTS. This update provides the compiler-based retpoline kernel mitigation for the amd64 and i386 architectures. Original advisory details:
Jann Horn discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2017-5715)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 LTS: linux-image-4.4.0-1019-kvm 4.4.0-1019.24 linux-image-4.4.0-1052-aws 4.4.0-1052.61 linux-image-4.4.0-1085-raspi2 4.4.0-1085.93 linux-image-4.4.0-1087-snapdragon 4.4.0-1087.92 linux-image-4.4.0-116-generic 4.4.0-116.140 linux-image-4.4.0-116-generic-lpae 4.4.0-116.140 linux-image-4.4.0-116-lowlatency 4.4.0-116.140 linux-image-4.4.0-116-powerpc-e500mc 4.4.0-116.140 linux-image-4.4.0-116-powerpc-smp 4.4.0-116.140 linux-image-4.4.0-116-powerpc64-emb 4.4.0-116.140 linux-image-4.4.0-116-powerpc64-smp 4.4.0-116.140 linux-image-aws 4.4.0.1052.54 linux-image-generic 4.4.0.116.122 linux-image-generic-lpae 4.4.0.116.122 linux-image-kvm 4.4.0.1019.18 linux-image-lowlatency 4.4.0.116.122 linux-image-powerpc-e500mc 4.4.0.116.122 linux-image-powerpc-smp 4.4.0.116.122 linux-image-powerpc64-emb 4.4.0.116.122 linux-image-powerpc64-smp 4.4.0.116.122 linux-image-raspi2 4.4.0.1085.85 linux-image-snapdragon 4.4.0.1087.79
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: https://usn.ubuntu.com/usn/usn-3582-1 CVE-2015-8952, CVE-2017-12190, CVE-2017-15115, CVE-2017-17712, CVE-2017-5715, CVE-2017-8824
Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-116.140 https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1052.61 https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1019.24 https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1085.93 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1087.92
--cpvLTH7QU4gwfq3S Content-Type: application/pgp-signature; name="signature.asc"
-----BEGIN PGP SIGNATURE-----
iQIcBAABCgAGBQJajpe6AAoJEC8Jno0AXoH0xkAQAJzMy7pa5U72iivcICmD5LUb h/Dvk7VlFw147MZ4jQKuUgAf9q4oiGcPvYcEbPgO+dmzQO7XVhiRUN/rIXHfbwds fltId//qufDee7wxAsh0/fyDHErN3eu5aeJ/3TaazTfxzyZ/UI/Nf/MwIdJPaKWo djs6wmUh+BQUWSQxNs6zt75xl7QO+FEGc2NbCGAAj8uS8KiFtBydZXLQD8cvT55W XFunpDmFSGc0VrG4EvYIFHZhubuDRBR7cLQORj4hqrOL42H0NW+sWYsVzu3iEG3F ZzU1k11mWtvr5eVsBrKMhJHqvvtJcrQ5Oc4TGfF7/HYrDhGwBARyG7PX4EMLMgKc V5d9I93ODqPaLyflMbNgpkYfZMCKlPUcwSD8JkbnZ+nxpz+LvH285aXlsHoFLb0A WnsUD6tLmu+sr/EPjKIZSvkZ18XYMJft4H1GQ1rSJelf0/nAxJin7pS00AiPeqb0 +QsvNE63hnj3UCN1FwvscoYeHTYM7fMFeUjTCWH3EePwYyLGvifoPKnKCLh/o/Oj l4LIodmahCdiHCCXwYAvlTXxL0WhSSKf8TQX0h5pKyNZN0rIuH3ul+EEW7wXmWEM xmWTQwwNhlqxlBlBliqFRf/p4nmq2PYHJozh9x1cfINwVhSZYdLIyaaC9VUWhFXk QJJlcg2HzKEQN6WGXbSM =3bDn -----END PGP SIGNATURE-----
--cpvLTH7QU4gwfq3S--
--===============7394112128445943622== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline
-- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce
|
|
|
|