VAR-201911-1639

Vulnerability from variot - Updated: 2023-12-18 11:22

Resource leak in i40e driver for Intel(R) Ethernet 700 Series Controllers versions before 7.0 may allow an authenticated user to potentially enable a denial of service via local access. Intel(R) Ethernet 700 Series Controller Contains a resource exhaustion vulnerability.Denial of service (DoS) May be in a state. Intel Ethernet 700 Series Controllers is a network adapter product from Intel Corporation. An attacker could exploit this vulnerability to cause a denial of service. This vulnerability stems from improper management of system resources (such as memory, disk space, files, etc.) by network systems or products. ========================================================================== Ubuntu Security Notice USN-4681-1 January 06, 2021

linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities ==========================================================================

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

  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 ESM

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-kvm: Linux kernel for cloud environments - linux-raspi2: Linux kernel for Raspberry Pi (V8) systems - linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty

Details:

Ryan Hall discovered that the Intel 700 Series Ethernet Controllers driver in the Linux kernel did not properly deallocate memory in some conditions. (CVE-2019-0148)

It was discovered that the console keyboard driver in the Linux kernel contained a race condition. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-25656)

Minh Yuan discovered that the tty driver in the Linux kernel contained race conditions when handling fonts. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2020-25668)

Jinoh Kang discovered that the Xen event channel infrastructure in the Linux kernel contained a race condition. (CVE-2020-27675)

Minh Yuan discovered that the framebuffer console driver in the Linux kernel did not properly handle fonts in some conditions. (CVE-2020-28974)

It was discovered that Power 9 processors could be coerced to expose information from the L1 cache in certain situations. A local attacker could use this to expose sensitive information. (CVE-2020-4788)

Update instructions:

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

Ubuntu 16.04 LTS: linux-image-4.4.0-1085-kvm 4.4.0-1085.94 linux-image-4.4.0-1119-aws 4.4.0-1119.133 linux-image-4.4.0-1143-raspi2 4.4.0-1143.153 linux-image-4.4.0-1147-snapdragon 4.4.0-1147.157 linux-image-4.4.0-198-generic 4.4.0-198.230 linux-image-4.4.0-198-generic-lpae 4.4.0-198.230 linux-image-4.4.0-198-lowlatency 4.4.0-198.230 linux-image-4.4.0-198-powerpc-e500mc 4.4.0-198.230 linux-image-4.4.0-198-powerpc-smp 4.4.0-198.230 linux-image-4.4.0-198-powerpc64-emb 4.4.0-198.230 linux-image-4.4.0-198-powerpc64-smp 4.4.0-198.230 linux-image-aws 4.4.0.1119.124 linux-image-generic 4.4.0.198.204 linux-image-generic-lpae 4.4.0.198.204 linux-image-kvm 4.4.0.1085.83 linux-image-lowlatency 4.4.0.198.204 linux-image-powerpc-e500mc 4.4.0.198.204 linux-image-powerpc-smp 4.4.0.198.204 linux-image-powerpc64-emb 4.4.0.198.204 linux-image-powerpc64-smp 4.4.0.198.204 linux-image-raspi2 4.4.0.1143.143 linux-image-snapdragon 4.4.0.1147.139 linux-image-virtual 4.4.0.198.204

Ubuntu 14.04 ESM: linux-image-4.4.0-1083-aws 4.4.0-1083.87 linux-image-4.4.0-198-generic 4.4.0-198.230~14.04.1 linux-image-4.4.0-198-generic-lpae 4.4.0-198.230~14.04.1 linux-image-4.4.0-198-lowlatency 4.4.0-198.230~14.04.1 linux-image-4.4.0-198-powerpc-e500mc 4.4.0-198.230~14.04.1 linux-image-4.4.0-198-powerpc-smp 4.4.0-198.230~14.04.1 linux-image-4.4.0-198-powerpc64-emb 4.4.0-198.230~14.04.1 linux-image-4.4.0-198-powerpc64-smp 4.4.0-198.230~14.04.1 linux-image-aws 4.4.0.1083.80 linux-image-generic-lpae-lts-xenial 4.4.0.198.173 linux-image-generic-lts-xenial 4.4.0.198.173 linux-image-lowlatency-lts-xenial 4.4.0.198.173 linux-image-powerpc-e500mc-lts-xenial 4.4.0.198.173 linux-image-powerpc-smp-lts-xenial 4.4.0.198.173 linux-image-powerpc64-emb-lts-xenial 4.4.0.198.173 linux-image-powerpc64-smp-lts-xenial 4.4.0.198.173 linux-image-virtual-lts-xenial 4.4.0.198.173

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/4681-1 CVE-2019-0148, CVE-2020-25656, CVE-2020-25668, CVE-2020-27675, CVE-2020-28974, CVE-2020-4788

Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-198.230 https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1119.133 https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1085.94 https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1143.153 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1147.157

Show details on source website

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This vulnerability stems from improper management of system resources (such as memory, disk space, files, etc.) by network systems or products. ==========================================================================\nUbuntu Security Notice USN-4681-1\nJanuary 06, 2021\n\nlinux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2,\nlinux-snapdragon vulnerabilities\n==========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 16.04 LTS\n- Ubuntu 14.04 ESM\n\nSummary:\n\nSeveral security issues were fixed in the Linux kernel. \n\nSoftware Description:\n- linux: Linux kernel\n- linux-aws: Linux kernel for Amazon Web Services (AWS) systems\n- linux-kvm: Linux kernel for cloud environments\n- linux-raspi2: Linux kernel for Raspberry Pi (V8) systems\n- linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors\n- linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty\n\nDetails:\n\nRyan Hall discovered that the Intel 700 Series Ethernet Controllers driver\nin the Linux kernel did not properly deallocate memory in some conditions. (CVE-2019-0148)\n\nIt was discovered that the console keyboard driver in the Linux kernel\ncontained a race condition. A local attacker could use this to expose\nsensitive information (kernel memory). (CVE-2020-25656)\n\nMinh Yuan discovered that the tty driver in the Linux kernel contained race\nconditions when handling fonts. A local attacker could possibly use this to\nexpose sensitive information (kernel memory). (CVE-2020-25668)\n\nJinoh Kang discovered that the Xen event channel infrastructure in the\nLinux kernel contained a race condition. \n(CVE-2020-27675)\n\nMinh Yuan discovered that the framebuffer console driver in the Linux\nkernel did not properly handle fonts in some conditions. (CVE-2020-28974)\n\nIt was discovered that Power 9 processors could be coerced to expose\ninformation from the L1 cache in certain situations. A local attacker could\nuse this to expose sensitive information. 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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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