Login
Newsletter
Werbung

Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: USN-4945-1
Distribution: Ubuntu
Plattformen: Ubuntu 18.04 LTS, Ubuntu 20.04 LTS
Datum: Mi, 12. Mai 2021, 07:29
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28660
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28375
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25639
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29265
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28038
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30002
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29650
Applikationen: Linux

Originalnachricht


--===============2967874142327856153==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="Y58Mt1vjMptobdup"
Content-Disposition: inline


--Y58Mt1vjMptobdup
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

==========================================================================
Ubuntu Security Notice USN-4945-1
May 11, 2021

linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp,
linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4,
linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 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-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke: Linux kernel for Google Container Engine (GKE) systems
- linux-gkeop: Linux kernel for Google Container Engine (GKE) systems
- linux-kvm: Linux kernel for cloud environments
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems
- linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems
- linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke-5.4: Linux kernel for Google Container Engine (GKE) systems
- linux-gkeop-5.4: Linux kernel for Google Container Engine (GKE) systems
- linux-hwe-5.4: Linux hardware enablement (HWE) kernel
- linux-oracle-5.4: Linux kernel for Oracle Cloud systems

Details:

It was discovered that the Nouveau GPU driver in the Linux kernel did not
properly handle error conditions in some situations. A local attacker could
use this to cause a denial of service (system crash). (CVE-2020-25639)

Jan Beulich discovered that the Xen netback backend in the Linux kernel did
not properly handle certain error conditions under paravirtualization. An
attacker in a guest VM could possibly use this to cause a denial of service
(host domain crash). (CVE-2021-28038)

It was discovered that the fastrpc driver in the Linux kernel did not
prevent user space applications from sending kernel RPC messages. A local
attacker could possibly use this to gain elevated privileges.
(CVE-2021-28375)

It was discovered that the Realtek RTL8188EU Wireless device driver in the
Linux kernel did not properly validate ssid lengths in some situations. An
attacker could use this to cause a denial of service (system crash).
(CVE-2021-28660)

It was discovered that the USB/IP driver in the Linux kernel contained race
conditions during the update of local and shared status. An attacker could
use this to cause a denial of service (system crash). (CVE-2021-29265)

It was discovered that a race condition existed in the netfilter subsystem
of the Linux kernel when replacing tables. A local attacker could use this
to cause a denial of service (system crash). (CVE-2021-29650)

Arnd Bergmann discovered that the video4linux subsystem in the Linux kernel
did not properly deallocate memory in some situations. A local attacker
could use this to cause a denial of service (memory exhaustion).
(CVE-2021-30002)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
linux-image-5.4.0-1015-gkeop 5.4.0-1015.16
linux-image-5.4.0-1039-kvm 5.4.0-1039.40
linux-image-5.4.0-1043-gcp 5.4.0-1043.46
linux-image-5.4.0-1043-gke 5.4.0-1043.45
linux-image-5.4.0-1045-oracle 5.4.0-1045.49+1
linux-image-5.4.0-1047-azure 5.4.0-1047.49
linux-image-5.4.0-1048-aws 5.4.0-1048.50
linux-image-5.4.0-73-generic 5.4.0-73.82
linux-image-5.4.0-73-generic-lpae 5.4.0-73.82
linux-image-5.4.0-73-lowlatency 5.4.0-73.82
linux-image-aws 5.4.0.1048.49
linux-image-azure 5.4.0.1047.45
linux-image-gcp 5.4.0.1043.52
linux-image-generic 5.4.0.73.76
linux-image-generic-lpae 5.4.0.73.76
linux-image-gke 5.4.0.1043.52
linux-image-gke-5.4 5.4.0.1043.52
linux-image-gkeop 5.4.0.1015.18
linux-image-gkeop-5.4 5.4.0.1015.18
linux-image-kvm 5.4.0.1039.37
linux-image-lowlatency 5.4.0.73.76
linux-image-oem 5.4.0.73.76
linux-image-oem-osp1 5.4.0.73.76
linux-image-oracle 5.4.0.1045.44
linux-image-virtual 5.4.0.73.76

Ubuntu 18.04 LTS:
linux-image-5.4.0-1015-gkeop 5.4.0-1015.16~18.04.1
linux-image-5.4.0-1043-gcp 5.4.0-1043.46~18.04.1
linux-image-5.4.0-1043-gke 5.4.0-1043.45~18.04.1
linux-image-5.4.0-1044-oracle 5.4.0-1044.47~18.04.1
linux-image-5.4.0-1047-azure 5.4.0-1047.49~18.04.1
linux-image-5.4.0-1048-aws 5.4.0-1048.50~18.04.1
linux-image-5.4.0-73-generic 5.4.0-73.82~18.04.1
linux-image-5.4.0-73-generic-lpae 5.4.0-73.82~18.04.1
linux-image-5.4.0-73-lowlatency 5.4.0-73.82~18.04.1
linux-image-aws 5.4.0.1048.30
linux-image-azure 5.4.0.1047.26
linux-image-gcp 5.4.0.1043.30
linux-image-generic-hwe-18.04 5.4.0.73.82~18.04.66
linux-image-generic-lpae-hwe-18.04 5.4.0.73.82~18.04.66
linux-image-gke-5.4 5.4.0.1043.45~18.04.9
linux-image-gkeop-5.4 5.4.0.1015.16~18.04.16
linux-image-lowlatency-hwe-18.04 5.4.0.73.82~18.04.66
linux-image-oem 5.4.0.73.82~18.04.66
linux-image-oem-osp1 5.4.0.73.82~18.04.66
linux-image-oracle 5.4.0.1044.47~18.04.26
linux-image-snapdragon-hwe-18.04 5.4.0.73.82~18.04.66
linux-image-virtual-hwe-18.04 5.4.0.73.82~18.04.66

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://ubuntu.com/security/notices/USN-4945-1
CVE-2020-25639, CVE-2021-28038, CVE-2021-28375, CVE-2021-28660,
CVE-2021-29265, CVE-2021-29650, CVE-2021-30002

Package Information:
https://launchpad.net/ubuntu/+source/linux/5.4.0-73.82
https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1048.50
https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1047.49
https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1043.46
https://launchpad.net/ubuntu/+source/linux-gke/5.4.0-1043.45
https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1015.16
https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1039.40
https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1045.49
https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1048.50~18.04.1
https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1047.49~18.04.1
https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1043.46~18.04.1
https://launchpad.net/ubuntu/+source/linux-gke-5.4/5.4.0-1043.45~18.04.1
https://launchpad.net/ubuntu/+source/linux-gkeop-5.4/5.4.0-1015.16~18.04.1
https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-73.82~18.04.1
https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1044.47~18.04.1


--Y58Mt1vjMptobdup
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=zuWb
-----END PGP SIGNATURE-----

--Y58Mt1vjMptobdup--


--===============2967874142327856153==
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
Pro-Linux
Pro-Linux @Facebook
Neue Nachrichten
Werbung