CWE
416
Advisory Published

USN-6316-1: Linux kernel (OEM) vulnerabilities

First published: Tue Aug 29 2023(Updated: )

Daniel Moghimi discovered that some Intel(R) Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. (CVE-2022-40982) Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain vector register instructions. A local attacker could use this to expose sensitive information. (CVE-2023-20593) Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly handle table rules flush in certain circumstances. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2023-3777) Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly handle rule additions to bound chains in certain circumstances. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2023-3995) It was discovered that the netfilter subsystem in the Linux kernel did not properly handle PIPAPO element removal, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2023-4004) Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly handle bound chain deactivation in certain circumstances. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2023-4015)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-6.1.0-1020-oem<6.1.0-1020.20
6.1.0-1020.20
=22.04
All of
ubuntu/linux-image-oem-22.04c<6.1.0.1020.20
6.1.0.1020.20
=22.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this security advisory?

    The vulnerability ID for this security advisory is USN-6316-1.

  • What is the severity of CVE-2022-40982?

    The severity of CVE-2022-40982 is not specified in the security advisory.

  • How can a local unprivileged user exploit CVE-2022-40982?

    A local unprivileged user can exploit CVE-2022-40982 to obtain sensitive information.

  • What is the remedy for the vulnerability in the Ubuntu version 22.04?

    The remedy for the vulnerability in Ubuntu version 22.04 is to update to linux-image-oem-22.04c version 6.1.0.1020.20.

  • What is the Common Weakness Enumeration (CWE) ID for this vulnerability?

    The Common Weakness Enumeration (CWE) ID for this vulnerability is 416.

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