--===============4888258651705443841== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="CdrF4e02JqNVZeln" Content-Disposition: inline
--CdrF4e02JqNVZeln Content-Type: text/plain; charset=us-ascii Content-Disposition: inline
========================================================================== Ubuntu Security Notice USN-4387-1 June 09, 2020
linux, linux-aws, linux-aws-5.3, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3 vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.10 - 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-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-aws-5.3: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-5.3: Linux kernel for Microsoft Azure Cloud systems - linux-gcp-5.3: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke-5.3: Linux kernel for Google Container Engine (GKE) systems - linux-hwe: Linux hardware enablement (HWE) kernel - linux-oracle-5.3: Linux kernel for Oracle Cloud systems
Details:
It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2020-0067)
It was discovered that memory contents previously stored in microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly exposed to processes on the same or different processor cores. A local attacker could use this to expose sensitive information. (CVE-2020-0543)
Piotr Krysiuk discovered that race conditions existed in the file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12114)
It was discovered that the USB susbsystem's scatter-gather implementation in the Linux kernel did not properly take data references in some situations, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-12464)
Bui Quang Minh discovered that the XDP socket implementation in the Linux kernel did not properly validate meta-data passed from user space, leading to an out-of-bounds write vulnerability. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-12659)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 19.10: linux-image-5.3.0-1023-aws 5.3.0-1023.25 linux-image-5.3.0-1023-kvm 5.3.0-1023.25 linux-image-5.3.0-1024-oracle 5.3.0-1024.26 linux-image-5.3.0-1026-gcp 5.3.0-1026.28 linux-image-5.3.0-1028-azure 5.3.0-1028.29 linux-image-5.3.0-59-generic 5.3.0-59.53 linux-image-5.3.0-59-generic-lpae 5.3.0-59.53 linux-image-5.3.0-59-lowlatency 5.3.0-59.53 linux-image-5.3.0-59-snapdragon 5.3.0-59.53 linux-image-aws 5.3.0.1023.34 linux-image-azure 5.3.0.1028.47 linux-image-gcp 5.3.0.1026.37 linux-image-generic 5.3.0.59.49 linux-image-generic-lpae 5.3.0.59.49 linux-image-gke 5.3.0.1026.37 linux-image-kvm 5.3.0.1023.21 linux-image-lowlatency 5.3.0.59.49 linux-image-oracle 5.3.0.1024.40 linux-image-snapdragon 5.3.0.59.49 linux-image-virtual 5.3.0.59.49
Ubuntu 18.04 LTS: linux-image-5.3.0-1023-aws 5.3.0-1023.25~18.04.1 linux-image-5.3.0-1024-oracle 5.3.0-1024.26~18.04.1 linux-image-5.3.0-1026-gcp 5.3.0-1026.28~18.04.1 linux-image-5.3.0-1026-gke 5.3.0-1026.28~18.04.1 linux-image-5.3.0-1028-azure 5.3.0-1028.29~18.04.1 linux-image-5.3.0-59-generic 5.3.0-59.53~18.04.1 linux-image-5.3.0-59-generic-lpae 5.3.0-59.53~18.04.1 linux-image-5.3.0-59-lowlatency 5.3.0-59.53~18.04.1 linux-image-aws 5.3.0.1023.23 linux-image-azure 5.3.0.1028.25 linux-image-gcp 5.3.0.1026.21 linux-image-generic-hwe-18.04 5.3.0.59.113 linux-image-generic-lpae-hwe-18.04 5.3.0.59.113 linux-image-gke-5.3 5.3.0.1026.13 linux-image-gkeop-5.3 5.3.0.59.113 linux-image-lowlatency-hwe-18.04 5.3.0.59.113 linux-image-oracle 5.3.0.1024.22 linux-image-snapdragon-hwe-18.04 5.3.0.59.113 linux-image-virtual-hwe-18.04 5.3.0.59.113
Please note that the mitigation for CVE-2020-0543 requires a processor microcode update to be applied, either from your system manufacturer or via the intel-microcode package. The kernel update for this issue provides the ability to disable the mitigation and to report vulnerability status.
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/4387-1 CVE-2020-0067, CVE-2020-0543, CVE-2020-12114, CVE-2020-12464, CVE-2020-12659, https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SRBDS
Package Information: https://launchpad.net/ubuntu/+source/linux/5.3.0-59.53 https://launchpad.net/ubuntu/+source/linux-aws/5.3.0-1023.25 https://launchpad.net/ubuntu/+source/linux-azure/5.3.0-1028.29 https://launchpad.net/ubuntu/+source/linux-gcp/5.3.0-1026.28 https://launchpad.net/ubuntu/+source/linux-kvm/5.3.0-1023.25 https://launchpad.net/ubuntu/+source/linux-oracle/5.3.0-1024.26 https://launchpad.net/ubuntu/+source/linux-aws-5.3/5.3.0-1023.25~18.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.3/5.3.0-1028.29~18.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.3/5.3.0-1026.28~18.04.1 https://launchpad.net/ubuntu/+source/linux-gke-5.3/5.3.0-1026.28~18.04.1 https://launchpad.net/ubuntu/+source/linux-hwe/5.3.0-59.53~18.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.3/5.3.0-1024.26~18.04.1
--CdrF4e02JqNVZeln Content-Type: application/pgp-signature; name="signature.asc"
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEpgY7tWAjCaQ8jrvULwmejQBegfQFAl7gNPYACgkQLwmejQBe gfT6+Q//VSnJDP6yGPV6TWujYMpT/TpPLkmyJmkXjhAB9FRdors2TQWbXJhMO62S /VEchXkJ0zDIwGDMapPWh0XmFINZA1/1PvgS7Q5gjgtH4xZO+h0Ol73lgkkVLOfA mw55uC3jbDQfXVKpluMMqsynKYVnY8AJXh3rd4jt/D0CBMffhjBjLFS33SgV8xIh pVznjZzjHSEsP9dPpwMGU+iCg65Xz9LCelFGmEZ76yU8orwu9UiDhxh9KxlOM+Ep OU76UKQ8XimZuZWC67BHmaaSaBOdCJn/wet/082BeABsCkC1Fpz1xpsdN+rK8rST kZ0msQOvtxKf9pbpURMfKvpj8wjnaphi/5Z1mI6HK8gFEQbeF6RB3h5TbxybLAQl MFQkugj/MruGSjRSuThppJJtsyLR/h9N6Fc5jP1OqGMRGDGVEltyUG0FvKeofYmO 0AYRkKxiuvyRSHRp4IqQyp0a4WYUnfd5UGGqojNs8yUqp6vXpTtyIo2bJxTkv4pQ 32PNp7A2SbDH3U/SHxI7aGrQBkAiVTd7HDOo8nmolZ319jKvPqxYaOj+kGhvRU2P E985xkxLCNa6gW30rhCrH7Lu8mWiCgNID9v0bSJc106VyEY7kvzfFYK6EzSY+aoV nCwQrPVkrzWOLvp7xw3Lk2T1f8QNnyUBsXnkoqPBpXujukGkMoI= =rnFX -----END PGP SIGNATURE-----
--CdrF4e02JqNVZeln--
--===============4888258651705443841== 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
|