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CVE-2020-10767

Status Candidate

Overview

A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.

Related Files

Ubuntu Security Notice USN-4485-1
Posted Sep 2, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4485-1 - Timothy Michaud discovered that the i915 graphics driver in the Linux kernel did not properly validate user memory locations for the i915_gem_execbuffer2_ioctl. A local attacker could possibly use this to cause a denial of service or execute arbitrary code. It was discovered that the Kvaser CAN/USB driver in the Linux kernel did not properly initialize memory in certain situations. A local attacker could possibly use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-20669, CVE-2019-19947, CVE-2019-20810, CVE-2020-10732, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-10781, CVE-2020-12655, CVE-2020-12656, CVE-2020-12771, CVE-2020-13974, CVE-2020-15393, CVE-2020-24394
MD5 | 3eab8c5a9aa035dc793457aedf9c3e72
Ubuntu Security Notice USN-4483-1
Posted Sep 2, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4483-1 - Chuhong Yuan discovered that go7007 USB audio device driver in the Linux kernel did not properly deallocate memory in some failure conditions. A physically proximate attacker could use this to cause a denial of service. Fan Yang discovered that the mremap implementation in the Linux kernel did not properly handle DAX Huge Pages. A local attacker with access to DAX storage could use this to gain administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-20810, CVE-2020-10757, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-10781, CVE-2020-12655, CVE-2020-12656, CVE-2020-12771, CVE-2020-13974, CVE-2020-14356, CVE-2020-15393, CVE-2020-24394
MD5 | 956d025e726890073a04c74a86361f70
Red Hat Security Advisory 2020-3297-01
Posted Aug 4, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3297-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-10766, CVE-2020-10767, CVE-2020-10768
MD5 | dea081405f874171c184d5a14d17c67a
Red Hat Security Advisory 2020-3222-01
Posted Jul 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3222-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, bypass, denial of service, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-19807, CVE-2019-20908, CVE-2020-10757, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-12653, CVE-2020-12654, CVE-2020-12888, CVE-2020-15780
MD5 | c02ad005e8a5b5594ac671c959f4f4b3
Ubuntu Security Notice USN-4440-1
Posted Jul 28, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4440-1 - It was discovered that the network block device implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service. It was discovered that the kernel->user space relay implementation in the Linux kernel did not properly check return values in some situations. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-16089, CVE-2019-19462, CVE-2019-20810, CVE-2019-20908, CVE-2020-10732, CVE-2020-10757, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-11935, CVE-2020-13974, CVE-2020-15780
MD5 | 84023413bcd0b80225be255d04f167cc
Ubuntu Security Notice USN-4439-1
Posted Jul 28, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4439-1 - It was discovered that the network block device implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service. It was discovered that the btrfs file system implementation in the Linux kernel did not properly validate file system metadata in some situations. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2019-12380, CVE-2019-16089, CVE-2019-19036, CVE-2019-19462, CVE-2019-20810, CVE-2019-20908, CVE-2020-10732, CVE-2020-10757, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-11935, CVE-2020-13974, CVE-2020-15780
MD5 | fd9129400eed5dab23dde6533a456dd1
Ubuntu Security Notice USN-4427-1
Posted Jul 22, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4427-1 - It was discovered that the Kvaser CAN/USB driver in the Linux kernel did not properly initialize memory in certain situations. A local attacker could possibly use this to expose sensitive information. Chuhong Yuan discovered that go7007 USB audio device driver in the Linux kernel did not properly deallocate memory in some failure conditions. A physically proximate attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-12380, CVE-2019-19947, CVE-2019-20810, CVE-2019-20908, CVE-2020-10732, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-11935, CVE-2020-13974
MD5 | f507315d6608e55168aa521403f99c05
Red Hat Security Advisory 2020-3073-01
Posted Jul 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3073-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-10766, CVE-2020-10767, CVE-2020-10768
MD5 | d82a6cf76de175830904effe7ab6e9ee
Red Hat Security Advisory 2020-3041-01
Posted Jul 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3041-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow and denial of service vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-10757, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-12653, CVE-2020-12654, CVE-2020-12888
MD5 | 6afaf90157c3c89dda5419b0ec4785b2
Red Hat Security Advisory 2020-3016-01
Posted Jul 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3016-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, denial of service, information leakage, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-19807, CVE-2019-3016, CVE-2020-10757, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-12653, CVE-2020-12654, CVE-2020-12888
MD5 | d097defef959edd4754677e446ea8818
Red Hat Security Advisory 2020-3010-01
Posted Jul 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3010-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, information leakage, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-19807, CVE-2019-3016, CVE-2020-10757, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-12653, CVE-2020-12654, CVE-2020-12888
MD5 | 1f392487c488cd7834702d0da042bdb9
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