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CVE-2019-19462

Status Candidate

Overview

relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.

Related Files

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
SHA-256 | 93050dd9768e16bf8e7459dcfcb358a4a7847e519f51bfbd8b25246f475d27e4
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
SHA-256 | 789e8f002f0de81a8d353f1ea8d5a4ecb5aa606f09d0d78851c94acd0cbcd044
Ubuntu Security Notice USN-4425-1
Posted Jul 22, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4425-1 - 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-2020-11935, CVE-2020-15780
SHA-256 | cf4699147e9a8170a6b01cfad73d27e74fd7559a378c683fa8339ccc82663df9
Ubuntu Security Notice USN-4414-1
Posted Jul 3, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4414-1 - 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-2019-19039, CVE-2019-19318, CVE-2019-19377, CVE-2019-19462, CVE-2019-19813, CVE-2019-19816, CVE-2020-10711, CVE-2020-12770, CVE-2020-13143
SHA-256 | ec1a7baec52bd131ecb393a55700b5d470ac7a5dd70696941fbd4f55b47787c4
Debian Security Advisory 4698-1
Posted Jun 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4698-1 - 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-2019-19319, CVE-2019-19462, CVE-2019-19768, CVE-2019-20806, CVE-2019-20811, CVE-2019-2182, CVE-2019-5108, CVE-2020-0543, CVE-2020-10711, CVE-2020-10732, CVE-2020-10751, CVE-2020-10757, CVE-2020-10942, CVE-2020-11494
SHA-256 | 6b0461d5fdc0442553e93411732b13c0f292cb8ee0cf3b5b3b0228efca950d91
Debian Security Advisory 4699-1
Posted Jun 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4699-1 - 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-2019-19462, CVE-2019-3016, CVE-2020-0543, CVE-2020-10711, CVE-2020-10732, CVE-2020-10751, CVE-2020-10757, CVE-2020-12114, CVE-2020-12464, CVE-2020-12768, CVE-2020-12770, CVE-2020-13143
SHA-256 | 5c9b08156b9df614e0b461fd3ef88e61fe9ad766f6bfda59ca0dca4bd59df181
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