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CVE-2023-30456

Status Candidate

Overview

An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency checks for CR0 and CR4.

Related Files

Ubuntu Security Notice USN-6699-1
Posted Mar 19, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6699-1 - Reima Ishii discovered that the nested KVM implementation for Intel x86 processors in the Linux kernel did not properly validate control registers in certain situations. An attacker in a guest VM could use this to cause a denial of service. It was discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel did not properly handle network packets in certain conditions, 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, x86, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-30456, CVE-2023-4921, CVE-2024-24855
SHA-256 | 741ef8ab62e9bd28635067dd14c486e47aa528483cb49a6add77447f74408506
Kernel Live Patch Security Notice LSN-0096-1
Posted Jul 26, 2023
Authored by Benjamin M. Romer

It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform data buffer size validation in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service (system crash) or possibly expose sensitive information. Reima Ishii discovered that the nested KVM implementation for Intel x86 processors in the Linux kernel did not properly validate control registers in certain situations. An attacker in a guest VM could use this to cause a denial of service (guest crash). Various other issues were also addressed.

tags | advisory, denial of service, x86, kernel
systems | linux
advisories | CVE-2023-1380, CVE-2023-30456, CVE-2023-31248, CVE-2023-31436, CVE-2023-35001
SHA-256 | f71c9e71db4bb6c2c048a5f92cbb08cec9d660d843f677df4000f97384e9be37
Ubuntu Security Notice USN-6162-1
Posted Jun 16, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6162-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write 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-2023-1380, CVE-2023-2612, CVE-2023-30456, CVE-2023-31436, CVE-2023-32233
SHA-256 | 051c13fde2c80844e27b2c57f0560451ad311ec00b445d14e7ef723cdc3f3a3a
Ubuntu Security Notice USN-6150-1
Posted Jun 9, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6150-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write 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-2023-1380, CVE-2023-2612, CVE-2023-30456, CVE-2023-31436, CVE-2023-32233
SHA-256 | 0acc6c7ad8dc0c5988138958ce21ae152b6621c4db1e8782277792c96cbaf6b5
Ubuntu Security Notice USN-6149-1
Posted Jun 9, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6149-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write 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-2023-1073, CVE-2023-1380, CVE-2023-28328, CVE-2023-30456, CVE-2023-31436, CVE-2023-32233
SHA-256 | 7519c27c454f92e04cb3775884c6e172222ac7d28f01614d4c927139473c0e92
Ubuntu Security Notice USN-6135-1
Posted Jun 5, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6135-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write 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-2023-1380, CVE-2023-2612, CVE-2023-30456, CVE-2023-31436, CVE-2023-32233
SHA-256 | 66a7b03c775050a82498ed2f444111107efb6e548a7e691d1c03a28b8eb3e17b
Ubuntu Security Notice USN-6130-1
Posted Jun 2, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6130-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write 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-2023-1380, CVE-2023-30456, CVE-2023-31436, CVE-2023-32233
SHA-256 | eb8fea09209e1b2a9abd8095f300d58cce398ab3b53779fad1bc9628adcea281
Ubuntu Security Notice USN-6132-1
Posted Jun 2, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6132-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write 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-2022-3707, CVE-2023-0459, CVE-2023-1075, CVE-2023-1078, CVE-2023-1118, CVE-2023-1380, CVE-2023-1513, CVE-2023-2162, CVE-2023-2612, CVE-2023-30456, CVE-2023-31436, CVE-2023-32233, CVE-2023-32269
SHA-256 | 3a2b50e313c2b4827e0511e7d699e0f91e738af1c052d4ce14e197ce64a96362
Ubuntu Security Notice USN-6131-1
Posted Jun 2, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6131-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write 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-2023-1380, CVE-2023-2612, CVE-2023-30456, CVE-2023-31436, CVE-2023-32233
SHA-256 | dc564d8e0327ead2dc5b56ea1fdacab2e8e966c41d956a83876c3ad9c642ef13
Ubuntu Security Notice USN-6127-1
Posted Jun 1, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6127-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write 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-2023-1380, CVE-2023-2612, CVE-2023-30456, CVE-2023-31436, CVE-2023-32233
SHA-256 | d5bebd00eb8fbd02af592148b36695e2ef824baceadfe6af62ac658584cf2947
Ubuntu Security Notice USN-6124-1
Posted May 31, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6124-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Reima Ishii discovered that the nested KVM implementation for Intel x86 processors in the Linux kernel did not properly validate control registers in certain situations. An attacker in a guest VM could use this to cause a denial of service.

tags | advisory, denial of service, arbitrary, x86, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-3586, CVE-2022-4139, CVE-2023-1670, CVE-2023-2612, CVE-2023-30456, CVE-2023-32233
SHA-256 | 488019825a52767118c79091984feba06bc2c22c68ba9d70b20568ab55b6c89d
Ubuntu Security Notice USN-6123-1
Posted May 31, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6123-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Reima Ishii discovered that the nested KVM implementation for Intel x86 processors in the Linux kernel did not properly validate control registers in certain situations. An attacker in a guest VM could use this to cause a denial of service.

tags | advisory, denial of service, arbitrary, x86, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1670, CVE-2023-2612, CVE-2023-26606, CVE-2023-30456, CVE-2023-32233
SHA-256 | df56b82df331c1c081d299856c697c2da2c9d8d15ef5390e9143271062bfb935
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