Preisgabe von Informationen in Linux
ID: | USN-4303-1 |
Distribution: | Ubuntu |
Plattformen: | Ubuntu 16.04 LTS |
Datum: | Di, 17. März 2020, 14:41 |
Referenzen: | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2732 |
Applikationen: | Linux |
Originalnachricht |
|
--===============2592945347090801140== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="8TaQrIeukR7mmbKf" Content-Disposition: inline --8TaQrIeukR7mmbKf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline ========================================================================== Ubuntu Security Notice USN-4303-1 March 17, 2020 linux, linux-aws, linux-kvm vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS Summary: The system could be made to expose sensitive information. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-kvm: Linux kernel for cloud environments Details: Paulo Bonzini discovered that the KVM hypervisor implementation in the Linux kernel could improperly let a nested (level 2) guest access the resources of a parent (level 1) guest in certain situations. An attacker could use this to expose sensitive information. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: linux-image-4.4.0-1068-kvm 4.4.0-1068.75 linux-image-4.4.0-1104-aws 4.4.0-1104.115 linux-image-4.4.0-176-generic 4.4.0-176.206 linux-image-4.4.0-176-generic-lpae 4.4.0-176.206 linux-image-4.4.0-176-lowlatency 4.4.0-176.206 linux-image-4.4.0-176-powerpc-e500mc 4.4.0-176.206 linux-image-4.4.0-176-powerpc-smp 4.4.0-176.206 linux-image-4.4.0-176-powerpc64-emb 4.4.0-176.206 linux-image-4.4.0-176-powerpc64-smp 4.4.0-176.206 linux-image-aws 4.4.0.1104.108 linux-image-generic 4.4.0.176.184 linux-image-generic-lpae 4.4.0.176.184 linux-image-kvm 4.4.0.1068.68 linux-image-lowlatency 4.4.0.176.184 linux-image-powerpc-e500mc 4.4.0.176.184 linux-image-powerpc-smp 4.4.0.176.184 linux-image-powerpc64-emb 4.4.0.176.184 linux-image-powerpc64-smp 4.4.0.176.184 linux-image-virtual 4.4.0.176.184 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/4303-1 CVE-2020-2732 Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-176.206 https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1104.115 https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1068.75 --8TaQrIeukR7mmbKf Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpgY7tWAjCaQ8jrvULwmejQBegfQFAl5wM9cACgkQLwmejQBe gfSjZxAAkf8scXoHmcqNlfohbAbGC8oWQOzqjBfNalqeBTiM9tV1zn2Uk8piEnZK LkzdPkPSNB8rdqCjzpU5twtCF1OlCieABFVc6kZsKf7qyA87/DiA+NKnUpKKDLZu fJy8EhQUw6kMHeNnZcYne3YqB+DKMJf38bjjl3mgGz1Fws5gK2ZLGh5EUJGDJb1l TwW0bCBvZs9NkxMTNtBOS/eFoHI2cBdKI54pAEWBtQCOQDam0/RqVQyLkllnzUpn cXN8Sw2pvuOHxr9LKss02YOeg57tSMr5aGx5q62t3SHnsDOXLqY2XEEC/CjBigT9 PAw6jyKb7KJwqFEPUYnHudVZmC7aIKzspsiB6fG9oZ13QtZP+0IdwZ+Zr4cKzDFM NNhtm90cHmA7AupfhS3DrC8zxYitLeGYZ1/8XmJ70gO89hBrIrxki6QwHOkSI58v ys0fbzBQRZD0D07ZbOhHw12ZDSqX7+uEVRwkPzqbEs/tLUyy6nnOyMD1LApcw5YG JMfdw2G14sczvlIgLBO04Dr6hYwwbO9wJ39IOVHAVloat/oHAB6OJ3GDmCE6fOCQ SmMBJtEfxgXGTfkasacdS5UewtNLn1qQVlWLfuDuLwLC6mM9DJQGoAM0euGUa7XA blFHqec5veDu3SC0mrFwnvmut53quEM3n4xtDmkNGb7P0YgxXfc= =kEXD -----END PGP SIGNATURE----- --8TaQrIeukR7mmbKf-- --===============2592945347090801140== 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 |