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CVE-2019-15902

Status Candidate

Overview

A backporting error was discovered in the Linux stable/longterm kernel 4.4.x through 4.4.190, 4.9.x through 4.9.190, 4.14.x through 4.14.141, 4.19.x through 4.19.69, and 5.2.x through 5.2.11. Misuse of the upstream "x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()" commit reintroduced the Spectre vulnerability that it aimed to eliminate. This occurred because the backport process depends on cherry picking specific commits, and because two (correctly ordered) code lines were swapped.

Related Files

Ubuntu Security Notice USN-4162-2
Posted Oct 23, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4162-2 - USN-4162-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux kernel for Microsoft Azure Cloud systems for Ubuntu 14.04 ESM. It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-21008, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-15117, CVE-2019-15118, CVE-2019-15505, CVE-2019-15902, CVE-2019-15918
SHA-256 | a8a09508e2d243ad7c849b55cb109f6c7f0aab08c2af289f59cfc77cbf683dc2
Ubuntu Security Notice USN-4163-2
Posted Oct 23, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4163-2 - USN-4163-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. It was discovered that a race condition existed in the ARC EMAC ethernet driver for the Linux kernel, resulting in a use-after-free vulnerability. An attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-10906, CVE-2017-18232, CVE-2018-21008, CVE-2019-14816, CVE-2019-14821, CVE-2019-15117, CVE-2019-15118, CVE-2019-15505, CVE-2019-15902
SHA-256 | 53e52d858b375dc759da8d71940b9a74799ef2429cb268bda52182f86a67c27c
Ubuntu Security Notice USN-4163-1
Posted Oct 22, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4163-1 - It was discovered that a race condition existed in the ARC EMAC ethernet driver for the Linux kernel, resulting in a use-after-free vulnerability. An attacker could use this to cause a denial of service. It was discovered that a race condition existed in the Serial Attached SCSI implementation in the Linux kernel when handling certain error conditions. A local 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-2016-10906, CVE-2017-18232, CVE-2018-21008, CVE-2019-14816, CVE-2019-14821, CVE-2019-15117, CVE-2019-15118, CVE-2019-15505, CVE-2019-15902
SHA-256 | cedfd2bb370862f13151b30fc2625f520648ba3ee5d47c56224d2b16803282c6
Ubuntu Security Notice USN-4162-1
Posted Oct 22, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4162-1 - It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-21008, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-15117, CVE-2019-15118, CVE-2019-15505, CVE-2019-15902, CVE-2019-15918
SHA-256 | 766eafebbf6fe9684e9d928dab508e66e29f9dd506c5d9b1141a9c677708de5f
Ubuntu Security Notice USN-4157-2
Posted Oct 22, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4157-2 - USN-4157-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.04. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 19.04 for Ubuntu 18.04 LTS. Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-15504, CVE-2019-15505, CVE-2019-15902, CVE-2019-16714, CVE-2019-2181
SHA-256 | 98e81da43ab7657c0515f3a777eb64a810ffffaa72274cb03f12408a3c619c36
Ubuntu Security Notice USN-4157-1
Posted Oct 17, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4157-1 - Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. A local attacker with write access to /dev/kvm could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-15504, CVE-2019-15505, CVE-2019-15902, CVE-2019-16714, CVE-2019-2181
SHA-256 | 3bb471aa2b029f966f4c1dda5ba7ffad57b217ce222f63fa935088ed71560d7d
Debian Security Advisory 4531-1
Posted Sep 25, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4531-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2019-14821, CVE-2019-14835, CVE-2019-15117, CVE-2019-15118, CVE-2019-15902
SHA-256 | 1df9274204c772d5f808506906e6e599454f3b3da9e257e9a87b359fcd24bec9
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