CWE
416 362
Advisory Published

USN-6503-1: Linux kernel vulnerabilities

First published: Tue Nov 21 2023(Updated: )

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 (system crash). (CVE-2023-31085) Bien Pham discovered that the netfiler subsystem in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4244) Maxim Levitsky discovered that the KVM nested virtualization (SVM) implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash). (CVE-2023-5090) It was discovered that the SMB network file sharing protocol implementation in the Linux kernel did not properly handle certain error conditions, 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-2023-5345) Murray McAllister discovered that the VMware Virtual GPU DRM driver in the Linux kernel did not properly handle memory objects when storing surfaces, leading to a use-after-free vulnerability. A local attacker in a guest VM could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5633)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-6.5.0-1004-starfive<6.5.0-1004.5
6.5.0-1004.5
=23.10
All of
ubuntu/linux-image-6.5.0-1006-laptop<6.5.0-1006.9
6.5.0-1006.9
=23.10
All of
ubuntu/linux-image-6.5.0-1007-raspi<6.5.0-1007.9
6.5.0-1007.9
=23.10
All of
ubuntu/linux-image-6.5.0-1010-aws<6.5.0-1010.10
6.5.0-1010.10
=23.10
All of
ubuntu/linux-image-6.5.0-1012-oracle<6.5.0-1012.12
6.5.0-1012.12
=23.10
All of
ubuntu/linux-image-6.5.0-13-generic<6.5.0-13.13
6.5.0-13.13
=23.10
All of
ubuntu/linux-image-6.5.0-13-generic-64k<6.5.0-13.13
6.5.0-13.13
=23.10
All of
ubuntu/linux-image-6.5.0-13-lowlatency<6.5.0-13.13.1
6.5.0-13.13.1
=23.10
All of
ubuntu/linux-image-6.5.0-13-lowlatency-64k<6.5.0-13.13.1
6.5.0-13.13.1
=23.10
All of
ubuntu/linux-image-aws<6.5.0.1010.10
6.5.0.1010.10
=23.10
All of
ubuntu/linux-image-generic<6.5.0.13.15
6.5.0.13.15
=23.10
All of
ubuntu/linux-image-generic-64k<6.5.0.13.15
6.5.0.13.15
=23.10
All of
ubuntu/linux-image-generic-lpae<6.5.0.13.15
6.5.0.13.15
=23.10
All of
ubuntu/linux-image-kvm<6.5.0.13.15
6.5.0.13.15
=23.10
All of
ubuntu/linux-image-laptop-23.10<6.5.0.1006.9
6.5.0.1006.9
=23.10
All of
ubuntu/linux-image-lowlatency<6.5.0.13.13.11
6.5.0.13.13.11
=23.10
All of
ubuntu/linux-image-lowlatency-64k<6.5.0.13.13.11
6.5.0.13.13.11
=23.10
All of
ubuntu/linux-image-oracle<6.5.0.1012.12
6.5.0.1012.12
=23.10
All of
ubuntu/linux-image-raspi<6.5.0.1007.8
6.5.0.1007.8
=23.10
All of
ubuntu/linux-image-raspi-nolpae<6.5.0.1007.8
6.5.0.1007.8
=23.10
All of
ubuntu/linux-image-starfive<6.5.0.1004.6
6.5.0.1004.6
=23.10
All of
ubuntu/linux-image-virtual<6.5.0.13.15
6.5.0.13.15
=23.10
All of
ubuntu/linux-image-6.5.0-1008-oem<6.5.0-1008.8
6.5.0-1008.8
=22.04
All of
ubuntu/linux-image-oem-22.04d<6.5.0.1008.10
6.5.0.1008.10
=22.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of this Linux kernel vulnerability?

    The vulnerability ID of this Linux kernel vulnerability is CVE-2023-31085.

  • What is the severity of CVE-2023-31085?

    The severity of CVE-2023-31085 is not mentioned in the provided information.

  • How can a local privileged attacker exploit CVE-2023-31085?

    A local privileged attacker can exploit CVE-2023-31085 to cause a denial of service (system crash).

  • Which versions of Linux kernel are affected by this vulnerability?

    The affected versions of Linux kernel are not mentioned in the provided information.

  • Where can I find more information about this Linux kernel vulnerability?

    You can find more information about this Linux kernel vulnerability on the Ubuntu security advisory website using the provided references.

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