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CVE-2022-0171

Status Candidate

Overview

A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV).

Related Files

Ubuntu Security Notice USN-5877-1
Posted Feb 16, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5877-1 - Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service or execute arbitrary code. Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, overflow, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2022-0171, CVE-2022-20421, CVE-2022-2663, CVE-2022-3061, CVE-2022-3303, CVE-2022-3543, CVE-2022-3586, CVE-2022-3619, CVE-2022-3623, CVE-2022-3628, CVE-2022-3640, CVE-2022-3643, CVE-2022-3646, CVE-2022-3649
SHA-256 | 60a168e72bbcb1ae61635c658a3f3c2f300ae26432cfabaec68e0b15e8a78a6b
Ubuntu Security Notice USN-5792-2
Posted Jan 10, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5792-2 - Mingwei Zhang discovered that the KVM implementation for AMD processors in the Linux kernel did not properly handle cache coherency with Secure Encrypted Virtualization. A local attacker could possibly use this to cause a denial of service. It was discovered that a race condition existed in the Android Binder IPC subsystem 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.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0171, CVE-2022-20421, CVE-2022-2663, CVE-2022-3061, CVE-2022-3303, CVE-2022-3586, CVE-2022-3646, CVE-2022-3649, CVE-2022-39188, CVE-2022-39842, CVE-2022-40307, CVE-2022-4095, CVE-2022-43750
SHA-256 | 61a76824088434d45265841359f97a71f6e3346100e4081fc6a5ddb1b292354e
Ubuntu Security Notice USN-5792-1
Posted Jan 9, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5792-1 - Mingwei Zhang discovered that the KVM implementation for AMD processors in the Linux kernel did not properly handle cache coherency with Secure Encrypted Virtualization. A local attacker could possibly use this to cause a denial of service. It was discovered that a race condition existed in the Android Binder IPC subsystem 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.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0171, CVE-2022-20421, CVE-2022-2663, CVE-2022-3061, CVE-2022-3303, CVE-2022-3586, CVE-2022-3646, CVE-2022-3649, CVE-2022-39188, CVE-2022-39842, CVE-2022-40307, CVE-2022-4095, CVE-2022-43750
SHA-256 | 0d471b882265b05e21d7d5364395548bdfdb7aabb60f28ba0290bf97ec7175cb
Debian Security Advisory 5257-1
Posted Oct 18, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5257-1 - 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-2021-4037, CVE-2022-0171, CVE-2022-1184, CVE-2022-20421, CVE-2022-2602, CVE-2022-2663, CVE-2022-3061, CVE-2022-3176, CVE-2022-3303, CVE-2022-39188, CVE-2022-39842, CVE-2022-40307, CVE-2022-41674, CVE-2022-42719
SHA-256 | 385b8e712c28212598cf6de49f53f7eb2478d700f61c475c37b978c92ef570db
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