CWE
416
Advisory Published

USN-6342-1: Linux kernel vulnerabilities

First published: Wed Sep 06 2023(Updated: )

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) Zheng Zhang discovered that the device-mapper implementation in the Linux kernel did not properly handle locking during table_clear() operations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-2269) It was discovered that a use-after-free vulnerability existed in the HFS+ file system implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-2985) It was discovered that the DVB Core driver in the Linux kernel did not properly handle locking events in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-31084) It was discovered that the Quick Fair Queueing network 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 (system crash) or possibly execute arbitrary code. (CVE-2023-3611) It was discovered that the network packet classifier with netfilter/firewall marks implementation in the Linux kernel did not properly handle reference counting, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-3776)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.15.0-1123-oracle<4.15.0-1123.134
4.15.0-1123.134
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-1144-kvm<4.15.0-1144.149
4.15.0-1144.149
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-1154-gcp<4.15.0-1154.171
4.15.0-1154.171
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-1160-aws<4.15.0-1160.173
4.15.0-1160.173
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-216-generic<4.15.0-216.227
4.15.0-216.227
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-216-lowlatency<4.15.0-216.227
4.15.0-216.227
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-aws-lts-18.04<4.15.0.1160.158
4.15.0.1160.158
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-gcp-lts-18.04<4.15.0.1154.168
4.15.0.1154.168
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-generic<4.15.0.216.200
4.15.0.216.200
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-kvm<4.15.0.1144.135
4.15.0.1144.135
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-lowlatency<4.15.0.216.200
4.15.0.216.200
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-oracle-lts-18.04<4.15.0.1123.128
4.15.0.1123.128
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-virtual<4.15.0.216.200
4.15.0.216.200
Ubuntu Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-1123-oracle<4.15.0-1123.134~16.04.1
4.15.0-1123.134~16.04.1
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-1154-gcp<4.15.0-1154.171~16.04.1
4.15.0-1154.171~16.04.1
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-1160-aws<4.15.0-1160.173~16.04.1
4.15.0-1160.173~16.04.1
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-216-generic<4.15.0-216.227~16.04.1
4.15.0-216.227~16.04.1
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-216-lowlatency<4.15.0-216.227~16.04.1
4.15.0-216.227~16.04.1
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-aws-hwe<4.15.0.1160.143
4.15.0.1160.143
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-gcp<4.15.0.1154.144
4.15.0.1154.144
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-generic-hwe-16.04<4.15.0.216.200~16.04.1
4.15.0.216.200~16.04.1
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-gke<4.15.0.1154.144
4.15.0.1154.144
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-lowlatency-hwe-16.04<4.15.0.216.200~16.04.1
4.15.0.216.200~16.04.1
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-oem<4.15.0.216.200~16.04.1
4.15.0.216.200~16.04.1
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-oracle<4.15.0.1123.104
4.15.0.1123.104
Ubuntu Ubuntu=16.04
All of
ubuntu/linux-image-virtual-hwe-16.04<4.15.0.216.200~16.04.1
4.15.0.216.200~16.04.1
Ubuntu Ubuntu=16.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this advisory?

    The vulnerability ID for this advisory is USN-6342-1.

  • What is the severity of USN-6342-1?

    The severity of USN-6342-1 is not specified in the provided information.

  • What software versions are affected by USN-6342-1?

    The affected software versions for USN-6342-1 include Linux kernel version 4.15.0-1144.149, 4.15.0-1154.171, 4.15.0-1160.173, 4.15.0-216.227, 4.15.0-1123.134~16.04.1, 4.15.0-1154.171~16.04.1, 4.15.0-1160.173~16.04.1, and 4.15.0.216.200~16.04.1.

  • How can I fix the vulnerability in USN-6342-1?

    To fix the vulnerability in USN-6342-1, update the Linux kernel to version 4.15.0-1144.149 or later for Ubuntu 18.04, or version 4.15.0-216.227~16.04.1 or later for Ubuntu 16.04.

  • Where can I find more information about USN-6342-1?

    You can find more information about USN-6342-1 on the Ubuntu website.

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