drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
|
ID: |
USN-4318-1 |
|
Distribution: |
Ubuntu |
|
Plattformen: |
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS |
|
Datum: |
Di, 7. April 2020, 07:20 |
|
Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8992
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8428
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8834 |
|
Applikationen: |
Linux |
|
Originalnachricht |
--===============8701649092848492209== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="EVF5PPMfhYS0aIcm" Content-Disposition: inline
--EVF5PPMfhYS0aIcm Content-Type: text/plain; charset=us-ascii Content-Disposition: inline
========================================================================== Ubuntu Security Notice USN-4318-1 April 06, 2020
linux, linux-hwe vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux: Linux kernel - linux-hwe: Linux hardware enablement (HWE) kernel
Details:
Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2020-8428)
Gustavo Romero and Paul Mackerras discovered that the KVM implementation in the Linux kernel for PowerPC processors did not properly keep guest state separate from host state. A local attacker in a KVM guest could use this to cause a denial of service (host system crash). (CVE-2020-8834)
Shijie Luo discovered that the ext4 file system implementation in the Linux kernel did not properly check for a too-large journal size. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (soft lockup). (CVE-2020-8992)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: linux-image-4.15.0-96-generic 4.15.0-96.97 linux-image-4.15.0-96-generic-lpae 4.15.0-96.97 linux-image-4.15.0-96-lowlatency 4.15.0-96.97 linux-image-generic 4.15.0.96.87 linux-image-generic-lpae 4.15.0.96.87 linux-image-lowlatency 4.15.0.96.87 linux-image-powerpc-e500mc 4.15.0.96.87 linux-image-powerpc-smp 4.15.0.96.87 linux-image-powerpc64-emb 4.15.0.96.87 linux-image-powerpc64-smp 4.15.0.96.87 linux-image-virtual 4.15.0.96.87
Ubuntu 16.04 LTS: linux-image-4.15.0-96-generic 4.15.0-96.97~16.04.1 linux-image-4.15.0-96-generic-lpae 4.15.0-96.97~16.04.1 linux-image-4.15.0-96-lowlatency 4.15.0-96.97~16.04.1 linux-image-generic-hwe-16.04 4.15.0.96.104 linux-image-generic-lpae-hwe-16.04 4.15.0.96.104 linux-image-lowlatency-hwe-16.04 4.15.0.96.104 linux-image-oem 4.15.0.96.104 linux-image-virtual-hwe-16.04 4.15.0.96.104
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/4318-1 CVE-2020-8428, CVE-2020-8834, CVE-2020-8992
Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-96.97 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-96.97~16.04.1
--EVF5PPMfhYS0aIcm Content-Type: application/pgp-signature; name="signature.asc"
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEpgY7tWAjCaQ8jrvULwmejQBegfQFAl6LlQgACgkQLwmejQBe gfSeRg/+LspaJ2rIj26KFXjpg9dm6nI7uiwxz7DsMtRCPs31mginhsw7JSOzgNj9 R6PjdEhRAheev5g1xS4RQmpQv5MbjXUsDPf13GgASpa76WNC5KRCo5H8/cAN+nEy dNYrlsuCpNanxrW+QGshrTFdBZ58aEYfnM3/zrfWW3JM9mzyI0EZOihI9XXKN1rk r3eKHQV1xHZ1Ge58r6ECvDKEVvav9KBNtPI0iyBUFJPko859hncOPDbFxcBQ3h2u P+4ZmrPj2QrzURKarzO4Vxz+Zjt/XN2qHhCNVbvcvhfW+oiKZEo0X2DATIpFpRsH IWKPl4YDuoAegFpYDk3M4/AjXVxv6z6a8Ma+3NpBtDoRHPq7gFYxoWpLxasiPWp0 oDr0oXMxlERCvEVxN65IbH+N6bP2qKYtS9toJs0mUnOceymMMY7oMHW6YVOIDqzq P6ISlDZPSRRsr/NIrB6tyUFD9M3p6yzv1Onz4P9JDk9hp2uB8aRGTjJuZpNEmb2X EJoKL0I7JAHMtQZfJSeLDh95/mOHMS3QNpwFnOFabv+a1l5TReqbtr7z2UJbZr0e Bgy46EDfV+4vfwV5Ua3PJah6CAGWTWMIqRvx7b5NPjnBfPcCwMl9qy+c75H1q3n4 bZUZM6razJUiH5zO2cUc7rVj+3vahifBbBiC9ika4uec6eUbTbY= =M4nb -----END PGP SIGNATURE-----
--EVF5PPMfhYS0aIcm--
--===============8701649092848492209== 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
|
|
|
|