CWE
416
Advisory Published

USN-6309-1: Linux kernel vulnerabilities

First published: Mon Aug 28 2023(Updated: )

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 virtual terminal driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-3567) 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-4.4.0-1160-aws<4.4.0-1160.175
4.4.0-1160.175
=16.04
All of
ubuntu/linux-image-4.4.0-244-generic<4.4.0-244.278
4.4.0-244.278
=16.04
All of
ubuntu/linux-image-4.4.0-244-lowlatency<4.4.0-244.278
4.4.0-244.278
=16.04
All of
ubuntu/linux-image-aws<4.4.0.1160.164
4.4.0.1160.164
=16.04
All of
ubuntu/linux-image-generic<4.4.0.244.250
4.4.0.244.250
=16.04
All of
ubuntu/linux-image-generic-lts-xenial<4.4.0.244.250
4.4.0.244.250
=16.04
All of
ubuntu/linux-image-lowlatency<4.4.0.244.250
4.4.0.244.250
=16.04
All of
ubuntu/linux-image-lowlatency-lts-xenial<4.4.0.244.250
4.4.0.244.250
=16.04
All of
ubuntu/linux-image-virtual<4.4.0.244.250
4.4.0.244.250
=16.04
All of
ubuntu/linux-image-virtual-lts-xenial<4.4.0.244.250
4.4.0.244.250
=16.04
All of
ubuntu/linux-image-4.4.0-1122-aws<4.4.0-1122.128
4.4.0-1122.128
=14.04
All of
ubuntu/linux-image-4.4.0-244-generic<4.4.0-244.278~14.04.1
4.4.0-244.278~14.04.1
=14.04
All of
ubuntu/linux-image-4.4.0-244-lowlatency<4.4.0-244.278~14.04.1
4.4.0-244.278~14.04.1
=14.04
All of
ubuntu/linux-image-aws<4.4.0.1122.119
4.4.0.1122.119
=14.04
All of
ubuntu/linux-image-generic-lts-xenial<4.4.0.244.212
4.4.0.244.212
=14.04
All of
ubuntu/linux-image-lowlatency-lts-xenial<4.4.0.244.212
4.4.0.244.212
=14.04
All of
ubuntu/linux-image-virtual-lts-xenial<4.4.0.244.212
4.4.0.244.212
=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6309-1?

    The severity of USN-6309-1 is not specified in the provided information.

  • What is the impact of the vulnerability described in USN-6309-1?

    The vulnerability described in USN-6309-1 can allow a local attacker to cause a denial of service (kernel deadlock).

  • How do I fix the vulnerability described in USN-6309-1?

    To fix the vulnerability described in USN-6309-1, update the affected software versions to the specified remediation versions.

  • Which software versions are affected by the vulnerability described in USN-6309-1?

    The vulnerability described in USN-6309-1 affects Linux kernel versions 4.4.0-1160.175 and 4.4.0-244.278 on Ubuntu 16.04, as well as other specific versions listed in the provided information.

  • Where can I find more information about the vulnerability described in USN-6309-1?

    More information about the vulnerability described in USN-6309-1 can be found on the Ubuntu Security Notices website.

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