CWE
416
Advisory Published

USN-5565-1: Linux kernel vulnerabilities

First published: Wed Aug 10 2022(Updated: )

Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-2588) It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-2586) It was discovered that the implementation of POSIX timers in the Linux kernel did not properly clean up timers in some situations. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-2585) Johannes Wikner and Kaveh Razavi discovered that for some AMD x86-64 processors, the branch predictor could by mis-trained for return instructions in certain circumstances. A local attacker could possibly use this to expose sensitive information. (CVE-2022-29900) Johannes Wikner and Kaveh Razavi discovered that for some Intel x86-64 processors, the Linux kernel's protections against speculative branch target injection attacks were insufficient in some circumstances. A local attacker could possibly use this to expose sensitive information. (CVE-2022-29901)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-virtual<5.15.0.46.46
5.15.0.46.46
=22.04
All of
ubuntu/linux-image-generic-64k<5.15.0.46.46
5.15.0.46.46
=22.04
All of
ubuntu/linux-image-lowlatency-hwe-22.04<5.15.0.46.43
5.15.0.46.43
=22.04
All of
ubuntu/linux-image-virtual-hwe-22.04<5.15.0.46.46
5.15.0.46.46
=22.04
All of
ubuntu/linux-image-generic-hwe-22.04<5.15.0.46.46
5.15.0.46.46
=22.04
All of
ubuntu/linux-image-5.15.0-46-generic-64k<5.15.0-46.49
5.15.0-46.49
=22.04
All of
ubuntu/linux-image-5.15.0-46-lowlatency<5.15.0-46.49
5.15.0-46.49
=22.04
All of
ubuntu/linux-image-5.15.0-46-generic<5.15.0-46.49
5.15.0-46.49
=22.04
All of
ubuntu/linux-image-lowlatency-64k<5.15.0.46.43
5.15.0.46.43
=22.04
All of
ubuntu/linux-image-5.15.0-46-lowlatency-64k<5.15.0-46.49
5.15.0-46.49
=22.04
All of
ubuntu/linux-image-5.15.0-46-generic-lpae<5.15.0-46.49
5.15.0-46.49
=22.04
All of
ubuntu/linux-image-generic<5.15.0.46.46
5.15.0.46.46
=22.04
All of
ubuntu/linux-image-generic-64k-hwe-22.04<5.15.0.46.46
5.15.0.46.46
=22.04
All of
ubuntu/linux-image-generic-lpae<5.15.0.46.46
5.15.0.46.46
=22.04
All of
ubuntu/linux-image-generic-lpae-hwe-22.04<5.15.0.46.46
5.15.0.46.46
=22.04
All of
ubuntu/linux-image-lowlatency-64k-hwe-22.04<5.15.0.46.43
5.15.0.46.43
=22.04
All of
ubuntu/linux-image-lowlatency<5.15.0.46.43
5.15.0.46.43
=22.04
All of
ubuntu/linux-image-virtual-hwe-20.04<5.15.0.46.49~20.04.16
5.15.0.46.49~20.04.16
=20.04
All of
ubuntu/linux-image-lowlatency-hwe-20.04<5.15.0.46.49~20.04.15
5.15.0.46.49~20.04.15
=20.04
All of
ubuntu/linux-image-5.15.0-46-generic-64k<5.15.0-46.49~20.04.1
5.15.0-46.49~20.04.1
=20.04
All of
ubuntu/linux-image-5.15.0-46-lowlatency<5.15.0-46.49~20.04.1
5.15.0-46.49~20.04.1
=20.04
All of
ubuntu/linux-image-generic-hwe-20.04<5.15.0.46.49~20.04.16
5.15.0.46.49~20.04.16
=20.04
All of
ubuntu/linux-image-lowlatency-64k-hwe-20.04<5.15.0.46.49~20.04.15
5.15.0.46.49~20.04.15
=20.04
All of
ubuntu/linux-image-5.15.0-46-generic<5.15.0-46.49~20.04.1
5.15.0-46.49~20.04.1
=20.04
All of
ubuntu/linux-image-5.15.0-46-lowlatency-64k<5.15.0-46.49~20.04.1
5.15.0-46.49~20.04.1
=20.04
All of
ubuntu/linux-image-5.15.0-46-generic-lpae<5.15.0-46.49~20.04.1
5.15.0-46.49~20.04.1
=20.04
All of
ubuntu/linux-image-generic-lpae-hwe-20.04<5.15.0.46.49~20.04.16
5.15.0.46.49~20.04.16
=20.04
All of
ubuntu/linux-image-generic-64k-hwe-20.04<5.15.0.46.49~20.04.16
5.15.0.46.49~20.04.16
=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-5565-1?

    The severity of USN-5565-1 is important.

  • How can a local attacker exploit this vulnerability?

    A local attacker can exploit this vulnerability to cause a denial of service or execute arbitrary code.

  • Which versions of Ubuntu are affected by this vulnerability?

    Ubuntu versions 22.04 and 20.04 are affected by this vulnerability.

  • How do I fix the USN-5565-1 vulnerability?

    You can fix the USN-5565-1 vulnerability by updating the affected software to the specified versions.

  • Where can I find more information about the USN-5565-1 vulnerability?

    You can find more information about the USN-5565-1 vulnerability on the Ubuntu website.

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