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CVE-2023-45898

Status Candidate

Overview

The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extents_status.c, related to ext4_es_insert_extent.

Related Files

Ubuntu Security Notice USN-6573-1
Posted Jan 10, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6573-1 - Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service or possibly expose sensitive information. Kyle Zeng discovered that the IPv4 implementation in the Linux kernel did not properly handle socket buffers when performing IP routing in certain circumstances, leading to a null pointer dereference vulnerability. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-39189, CVE-2023-42754, CVE-2023-45898, CVE-2023-5158, CVE-2023-5178, CVE-2023-5717
SHA-256 | f0006c6ad90fe8a85ac8f3a7f19eb4a40ef1d77203492568e9db162a44677120
Ubuntu Security Notice USN-6537-1
Posted Dec 7, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6537-1 - Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service. Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service or possibly expose sensitive information.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-31085, CVE-2023-39189, CVE-2023-4244, CVE-2023-42754, CVE-2023-45898, CVE-2023-5090, CVE-2023-5158, CVE-2023-5178, CVE-2023-5345, CVE-2023-5633, CVE-2023-5717
SHA-256 | 8aef40e675ea284f23ed621bd7c35ed99674db45761dbfcf4196b8a01e0ab72e
Ubuntu Security Notice USN-6536-1
Posted Dec 7, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6536-1 - Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service or possibly expose sensitive information. Kyle Zeng discovered that the IPv4 implementation in the Linux kernel did not properly handle socket buffers when performing IP routing in certain circumstances, leading to a null pointer dereference vulnerability. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-39189, CVE-2023-42754, CVE-2023-45898, CVE-2023-5158, CVE-2023-5178, CVE-2023-5717
SHA-256 | 491b7ae32101abad487102763eda45d30db3ca5f36849f84e358d72012a127f3
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