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CVE-2022-39189

Status Candidate

Overview

An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.

Related Files

Debian Security Advisory 5480-1
Posted Aug 21, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5480-1 - 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-2022-39189, CVE-2022-4269, CVE-2023-1206, CVE-2023-1380, CVE-2023-2002, CVE-2023-2007, CVE-2023-20588, CVE-2023-2124, CVE-2023-21255, CVE-2023-21400, CVE-2023-2269, CVE-2023-2898, CVE-2023-3090, CVE-2023-31084
SHA-256 | 41dc7825fce5df5966134dc369b0fdabc89599073025de78f75ae2cf98e6b9a8
Ubuntu Security Notice USN-5703-1
Posted Oct 27, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5703-1 - Selim Enes Karaduman discovered that a race condition existed in the General notification queue implementation of 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. Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-1882, CVE-2022-26373, CVE-2022-3176, CVE-2022-36879, CVE-2022-39189
SHA-256 | 5b417b139db650f2b8fcd1898f6ce031817ce2b3bdc152c22adfa9c99b871850
Ubuntu Security Notice USN-5683-1
Posted Oct 17, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5683-1 - It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Selim Enes Karaduman discovered that a race condition existed in the General notification queue implementation of 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-2021-33655, CVE-2022-1882, CVE-2022-2318, CVE-2022-26365, CVE-2022-26373, CVE-2022-3176, CVE-2022-33740, CVE-2022-33742, CVE-2022-33743, CVE-2022-33744, CVE-2022-34495, CVE-2022-36879, CVE-2022-36946, CVE-2022-39189
SHA-256 | 2f714311a2bf42767fd2c040e5e7b4c70e5d9ee2315aaccde091a713f4953e03
Ubuntu Security Notice USN-5667-1
Posted Oct 11, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5667-1 - Selim Enes Karaduman discovered that a race condition existed in the General notification queue implementation of 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. Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-1882, CVE-2022-26373, CVE-2022-3176, CVE-2022-36879, CVE-2022-39189
SHA-256 | fc6aa0b48cbbec45c01ce88ea8e4020301f03167f09f577ba52bbe554559b948
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