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CVE-2023-2430

Status Candidate

Overview

A vulnerability was found due to missing lock for IOPOLL flaw in io_cqring_event_overflow() in io_uring.c in Linux Kernel. This flaw allows a local attacker with user privilege to trigger a Denial of Service threat.

Related Files

Debian Security Advisory 5492-1
Posted Sep 11, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5492-1 - 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-2023-1206, CVE-2023-1989, CVE-2023-20588, CVE-2023-2430, CVE-2023-2898, CVE-2023-34319, CVE-2023-3611, CVE-2023-3772, CVE-2023-3773, CVE-2023-3776, CVE-2023-3777, CVE-2023-3863, CVE-2023-4004, CVE-2023-4015
SHA-256 | 60277f2faef1ae1013aaa8886111d7c6bc6dc369ef63d5538109f991fe7534ea
Ubuntu Security Notice USN-6235-1
Posted Jul 18, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6235-1 - It was discovered that the NTFS file system implementation in the Linux kernel contained a null pointer dereference in some situations. A local attacker could use this to cause a denial of service. Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did not properly implement speculative execution barriers in usercopy functions in certain situations. A local attacker could use this to expose sensitive information.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-4842, CVE-2023-0459, CVE-2023-0597, CVE-2023-1073, CVE-2023-2124, CVE-2023-2176, CVE-2023-2430
SHA-256 | 1db303a3b8120ffb0ffbb59ce2ebf898da02dd82d5607f649459f9873e2839cb
Ubuntu Security Notice USN-6194-1
Posted Jun 30, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6194-1 - Hangyu Hua discovered that the Flower classifier implementation in the Linux kernel contained an out-of-bounds write vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. Xingyuan Mo and Gengjia Chen discovered that the io_uring subsystem in the Linux kernel did not properly handle locking when IOPOLL mode is being used. A local attacker could use this to cause a denial of service.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-2176, CVE-2023-2430
SHA-256 | fceff39cebcf2eeca72cba0027daddd4cbde95c5ba78c11be2eb7d1492b62426
Ubuntu Security Notice USN-6192-1
Posted Jun 30, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6192-1 - Hangyu Hua discovered that the Flower classifier implementation in the Linux kernel contained an out-of-bounds write vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. Xingyuan Mo and Gengjia Chen discovered that the io_uring subsystem in the Linux kernel did not properly handle locking when IOPOLL mode is being used. A local attacker could use this to cause a denial of service.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-2430
SHA-256 | da679621444278bc95d49b6be4fe1cd8efc0acf577ac8dc9ee31c3abcc48236b
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