Zwei Probleme in Linux
ID: | USN-4711-1 |
Distribution: | Ubuntu |
Plattformen: | Ubuntu 18.04 LTS |
Datum: | Do, 28. Januar 2021, 16:08 |
Referenzen: | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25704
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28374 |
Applikationen: | Linux |
Originalnachricht |
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--===============5051833712710730794== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="FhxWStFQ84VXWhXs" Content-Disposition: inline --FhxWStFQ84VXWhXs Content-Type: text/plain; charset=utf-8 Content-Disposition: inlin Content-Transfer-Encoding: quoted-printable ========================================================================== Ubuntu Security Notice USN-4711-1 January 28, 2021 linux-aws, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi2: Linux kernel for Raspberry Pi (V8) systems - linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors Details: It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data. (CVE-2020-28374) Kiyin (尹亮) discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2020-25704) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1064-oracle 4.15.0-1064.71 linux-image-4.15.0-1078-raspi2 4.15.0-1078.83 linux-image-4.15.0-1084-kvm 4.15.0-1084.86 linux-image-4.15.0-1093-aws 4.15.0-1093.99 linux-image-4.15.0-1095-snapdragon 4.15.0-1095.104 linux-image-aws-lts-18.04 4.15.0.1093.96 linux-image-kvm 4.15.0.1084.80 linux-image-oracle-lts-18.04 4.15.0.1064.74 linux-image-raspi2 4.15.0.1078.75 linux-image-snapdragon 4.15.0.1095.98 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/4711-1 CVE-2020-25704, CVE-2020-28374 Package Information: https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1093.99 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1084.86 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1064.71 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1078.83 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1095.104 --FhxWStFQ84VXWhXs Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpgY7tWAjCaQ8jrvULwmejQBegfQFAmASZI8ACgkQLwmejQBe gfTglxAAp9STgIPXMjCZBEZZDX2sY1zhveTt56bzuN/+8D+LH8Fa+ZJjZW9nJI9a oRgywNk+gbA53LvWBYNu+lQYmIIbrl7hUdXfnASwZylrrFmADAEeXHPI21hIGnoA LEYiJxi195ZJbb2jh11ZJJCBpPBh0M31lCWxlVyy47rgRZsSBK5l0Wo33/kom7AW 4W3C9aqHk8v9E7MBJL7hj0t8mMeIAE1zbebi6Rum8ejQ6izRduS2wEOHIaXk/KzO q5IzvEZfwaAmiuwLHj5ovfNwMrTa7Dz8G6gtRzMkVqSAmuaWuonXgoS8u56jj1DY bIZETlY3wLMSqU/AWo2p/0zWkNKzqNsfiPq4z/jFyQqXWle2yNVU2RT8Eu0JHCVe 4n+00Hv3RZtnJ4Cho9lBklG6IGMU/Mcm3M9X6x1be2iBLvqAAvzKnJr8TS/oxyYd ZC2V0V25IwVp1xveXWV2shv1Wj3mw1JEPuIUV1d26MdefY6TNxBcmMZSQ1JDfjOI 52ZAl+oLDraPOGYrkLv3mBLwGpsMTeqyHI+n6NZ1PFMbtjfm7uX7EDVEHP10w7/2 u8nUCIt7IDN7jbu8ir1lI+prPNG8zUFztWqQaH6BuRAiGVLZcQAIHhTN/FUBJclG BSI1+LBXouQvcobMHdAz6uryR7wW4HyQlAzBWQZ7vyAWjeOSYB4= =BUqI -----END PGP SIGNATURE----- --FhxWStFQ84VXWhXs-- --===============5051833712710730794== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5 LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj dXJpdHktYW5ub3VuY2UK --===============5051833712710730794==-- |