Ausführen von Code mit höheren Privilegien in Linux
ID: | USN-4484-1 |
Distribution: | Ubuntu |
Plattformen: | Ubuntu 18.04 LTS |
Datum: | Mi, 2. September 2020, 07:33 |
Referenzen: | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14356 |
Applikationen: | Linux |
Originalnachricht |
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--===============0584198261407923667== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="Yia77v5a8fyVHJSl" Content-Disposition: inline --Yia77v5a8fyVHJSl Content-Type: text/plain; charset=us-ascii Content-Disposition: inline ========================================================================== Ubuntu Security Notice USN-4484-1 September 02, 2020 linux-hwe, linux-aws-5.3, linux-gke-5.3, linux-raspi2-5.3 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS Summary: The system could be made to crash or run programs as an administrator. Software Description: - linux-aws-5.3: Linux kernel for Amazon Web Services (AWS) systems - linux-gke-5.3: Linux kernel for Google Container Engine (GKE) systems - linux-hwe: Linux hardware enablement (HWE) kernel - linux-raspi2-5.3: Linux kernel for Raspberry Pi (V8) systems Details: It was discovered that the cgroup v2 subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2020-14356) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-5.3.0-1032-raspi2 5.3.0-1032.34 linux-image-5.3.0-1034-aws 5.3.0-1034.36 linux-image-5.3.0-1034-gke 5.3.0-1034.36 linux-image-5.3.0-66-generic 5.3.0-66.60 linux-image-5.3.0-66-lowlatency 5.3.0-66.60 linux-image-aws 5.3.0.1034.33 linux-image-gke-5.3 5.3.0.1034.19 linux-image-gkeop-5.3 5.3.0.66.123 linux-image-raspi2-hwe-18.04 5.3.0.1032.22 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/4484-1 CVE-2020-14356 Package Information: https://launchpad.net/ubuntu/+source/linux-aws-5.3/5.3.0-1034.36 https://launchpad.net/ubuntu/+source/linux-gke-5.3/5.3.0-1034.36 https://launchpad.net/ubuntu/+source/linux-hwe/5.3.0-66.60 https://launchpad.net/ubuntu/+source/linux-raspi2-5.3/5.3.0-1032.34 --Yia77v5a8fyVHJSl Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpgY7tWAjCaQ8jrvULwmejQBegfQFAl9PGcYACgkQLwmejQBe gfTGgw//S1o8qYwbnYEqFsQkOSYSsmgd50KvJI+CGN6MSSSKrBXbzP4edePzsh9M AaoRLtMOwNpkb+SPBQQ/X70tsUkRX11qaaU86wgEDi3ECCdSZHPa6dEDGHMpCoIZ 6EpF8rVLxZ7J8qctdRJ2pt6hEGGivdR9rCEF1S2B55cSvoXYkQh229mX2iN9wskx zd+8FurMf+qJXYHI0M71vBL1XakBVXEArZYu69I4x9fGPgmGUiS7L3NuuOTDrM/a m8uPoBpLhWLgW+v8+Hkk65RZ5SvbYhKFc3tg7AGfNih3kCvYfLN7PnjZH59w/98X 8q6XV/3Q5NNjt3/RYAztGaJ2A44xc5D2Xhn+rFm0b7HriMjBGSn+uepl+M4iD8SC Mdrsk2neYfK7uUlBigBF1dP8QQP6ASFu5Td/g1MOzz/UEuYBtbfxYU6mWSv5g3qr hqW9hQycSZjYGf9cZkpD6QkQdB0fK/Fwv/GKRNe5pC4NmtDv8VyCx0ePx7xs1jej IstBUriyjyLZDwnB5C0OBv6B52iIbgnOu/DE1dMaOwbrRMRr4iyLEG8L/cxFZU8S vj8NBceaKvmnNkV0G2tSQM/6lBxCIe9mHdFZHEBo5DO23VJRO/HZleS7jk53iGIR kch6+3HWMqgfca5G2aU9pqIRXSQ17CcsQRT3EUaeNP39EOyh+Wg= =W0HG -----END PGP SIGNATURE----- --Yia77v5a8fyVHJSl-- --===============0584198261407923667== 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 |