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CVE-2020-4788

Status Candidate

Overview

IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.

Related Files

Ubuntu Security Notice USN-4681-1
Posted Jan 6, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4681-1 - Ryan Hall discovered that the Intel 700 Series Ethernet Controllers driver in the Linux kernel did not properly deallocate memory in some conditions. A local attacker could use this to cause a denial of service. 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. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-0148, CVE-2020-25656, CVE-2020-25668, CVE-2020-27675, CVE-2020-28974, CVE-2020-4788
MD5 | 91670808904d9a205af1af1baa6a1ec2
Ubuntu Security Notice USN-4660-2
Posted Dec 14, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4660-2 - USN-4660-1 fixed vulnerabilities in the Linux kernel. Unfortunately, that update introduced a regression in the software raid10 driver when used with fstrim that could lead to data corruption. This update fixes the problem. It was discovered that a race condition existed in the perf subsystem of the Linux kernel, leading to a use-after-free vulnerability. An attacker with access to the perf subsystem 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-2020-14351, CVE-2020-14390, CVE-2020-25211, CVE-2020-25284, CVE-2020-25285, CVE-2020-25641, CVE-2020-25643, CVE-2020-25645, CVE-2020-28915, CVE-2020-4788
MD5 | 13b59c23735c20b99a07f2be7c796f7e
Ubuntu Security Notice USN-4658-2
Posted Dec 14, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4658-2 - USN-4658-1 fixed vulnerabilities in the Linux kernel. Unfortunately, that update introduced a regression in the software raid10 driver when used with fstrim that could lead to data corruption. This update fixes the problem. It was discovered that a race condition existed in the binder IPC implementation in the Linux kernel, leading to a use-after-free vulnerability. 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, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-0423, CVE-2020-10135, CVE-2020-14351, CVE-2020-14390, CVE-2020-25211, CVE-2020-25284, CVE-2020-25643, CVE-2020-25645, CVE-2020-25705, CVE-2020-28915, CVE-2020-4788
MD5 | 66bcfd82be0047a6e48a5c99b2d2bdac
Ubuntu Security Notice USN-4659-2
Posted Dec 14, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4659-2 - USN-4659-1 fixed vulnerabilities in the Linux kernel. Unfortunately, that update introduced a regression in the software raid10 driver when used with fstrim that could lead to data corruption. This update fixes the problem. It was discovered that a race condition existed in the binder IPC implementation in the Linux kernel, leading to a use-after-free vulnerability. 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, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-0423, CVE-2020-10135, CVE-2020-14351, CVE-2020-25705, CVE-2020-27152, CVE-2020-28915, CVE-2020-4788
MD5 | 6e8f14203b3a4048f0d5c37dc565a8ef
Ubuntu Security Notice USN-4660-1
Posted Dec 3, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4660-1 - It was discovered that a race condition existed in the perf subsystem of the Linux kernel, leading to a use-after-free vulnerability. An attacker with access to the perf subsystem could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the frame buffer implementation in the Linux kernel did not properly handle some edge cases in software scrollback. 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, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-14351, CVE-2020-14390, CVE-2020-25211, CVE-2020-25284, CVE-2020-25285, CVE-2020-25641, CVE-2020-25643, CVE-2020-25645, CVE-2020-28915, CVE-2020-4788
MD5 | ee3119babe4a4a73b8652559a6df5f65
Ubuntu Security Notice USN-4659-1
Posted Dec 2, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4659-1 - It was discovered that a race condition existed in the binder IPC implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered that legacy pairing and secure-connections pairing authentication in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. A physically proximate attacker could use this to impersonate a previously paired Bluetooth device. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2020-0423, CVE-2020-10135, CVE-2020-14351, CVE-2020-25705, CVE-2020-27152, CVE-2020-28915, CVE-2020-4788
MD5 | 37ee7c1e29761f04f52a270e013cd6ed
Ubuntu Security Notice USN-4658-1
Posted Dec 2, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4658-1 - It was discovered that a race condition existed in the binder IPC implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered that legacy pairing and secure-connections pairing authentication in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. A physically proximate attacker could use this to impersonate a previously paired Bluetooth device. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2020-0423, CVE-2020-10135, CVE-2020-14351, CVE-2020-14390, CVE-2020-25211, CVE-2020-25284, CVE-2020-25643, CVE-2020-25645, CVE-2020-25705, CVE-2020-28915, CVE-2020-4788
MD5 | 172e17181d7ddc7028474879ff713778
Ubuntu Security Notice USN-4657-1
Posted Dec 2, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4657-1 - Elena Petrova discovered that the pin controller device tree implementation in the Linux kernel did not properly handle string references. A local attacker could use this to expose sensitive information. Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered that legacy pairing and secure-connections pairing authentication in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. A physically proximate attacker could use this to impersonate a previously paired Bluetooth device. Various other issues were also addressed.

tags | advisory, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2020-0427, CVE-2020-10135, CVE-2020-12352, CVE-2020-14351, CVE-2020-14390, CVE-2020-25211, CVE-2020-25284, CVE-2020-25643, CVE-2020-25645, CVE-2020-25705, CVE-2020-28915, CVE-2020-4788
MD5 | 3aefcd5c22a1c13bbe2b3f9912ac8531
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