CWE
416
Advisory Published

USN-6317-1: Linux kernel 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) It was discovered that the universal 32bit network packet classifier implementation in the Linux kernel did not properly perform reference counting in some situations, 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-2023-3609) 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-5.4.0-1028-xilinx-zynqmp<5.4.0-1028.32
5.4.0-1028.32
=20.04
All of
ubuntu/linux-image-5.4.0-1097-kvm<5.4.0-1097.103
5.4.0-1097.103
=20.04
All of
ubuntu/linux-image-5.4.0-1107-oracle<5.4.0-1107.116
5.4.0-1107.116
=20.04
All of
ubuntu/linux-image-5.4.0-1108-aws<5.4.0-1108.116
5.4.0-1108.116
=20.04
All of
ubuntu/linux-image-5.4.0-1111-gcp<5.4.0-1111.120
5.4.0-1111.120
=20.04
All of
ubuntu/linux-image-5.4.0-159-generic<5.4.0-159.176
5.4.0-159.176
=20.04
All of
ubuntu/linux-image-5.4.0-159-generic-lpae<5.4.0-159.176
5.4.0-159.176
=20.04
All of
ubuntu/linux-image-5.4.0-159-lowlatency<5.4.0-159.176
5.4.0-159.176
=20.04
All of
ubuntu/linux-image-aws-lts-20.04<5.4.0.1108.105
5.4.0.1108.105
=20.04
All of
ubuntu/linux-image-gcp-lts-20.04<5.4.0.1111.113
5.4.0.1111.113
=20.04
All of
ubuntu/linux-image-generic<5.4.0.159.154
5.4.0.159.154
=20.04
All of
ubuntu/linux-image-generic-lpae<5.4.0.159.154
5.4.0.159.154
=20.04
All of
ubuntu/linux-image-kvm<5.4.0.1097.92
5.4.0.1097.92
=20.04
All of
ubuntu/linux-image-lowlatency<5.4.0.159.154
5.4.0.159.154
=20.04
All of
ubuntu/linux-image-oem<5.4.0.159.154
5.4.0.159.154
=20.04
All of
ubuntu/linux-image-oem-osp1<5.4.0.159.154
5.4.0.159.154
=20.04
All of
ubuntu/linux-image-oracle-lts-20.04<5.4.0.1107.100
5.4.0.1107.100
=20.04
All of
ubuntu/linux-image-virtual<5.4.0.159.154
5.4.0.159.154
=20.04
All of
ubuntu/linux-image-xilinx-zynqmp<5.4.0.1028.30
5.4.0.1028.30
=20.04
All of
ubuntu/linux-image-5.4.0-1108-aws<5.4.0-1108.116~18.04.1
5.4.0-1108.116~18.04.1
=18.04
All of
ubuntu/linux-image-5.4.0-159-generic<5.4.0-159.176~18.04.1
5.4.0-159.176~18.04.1
=18.04
All of
ubuntu/linux-image-5.4.0-159-generic-lpae<5.4.0-159.176~18.04.1
5.4.0-159.176~18.04.1
=18.04
All of
ubuntu/linux-image-5.4.0-159-lowlatency<5.4.0-159.176~18.04.1
5.4.0-159.176~18.04.1
=18.04
All of
ubuntu/linux-image-aws<5.4.0.1108.86
5.4.0.1108.86
=18.04
All of
ubuntu/linux-image-generic-hwe-18.04<5.4.0.159.176~18.04.127
5.4.0.159.176~18.04.127
=18.04
All of
ubuntu/linux-image-generic-lpae-hwe-18.04<5.4.0.159.176~18.04.127
5.4.0.159.176~18.04.127
=18.04
All of
ubuntu/linux-image-lowlatency-hwe-18.04<5.4.0.159.176~18.04.127
5.4.0.159.176~18.04.127
=18.04
All of
ubuntu/linux-image-oem<5.4.0.159.176~18.04.127
5.4.0.159.176~18.04.127
=18.04
All of
ubuntu/linux-image-oem-osp1<5.4.0.159.176~18.04.127
5.4.0.159.176~18.04.127
=18.04
All of
ubuntu/linux-image-snapdragon-hwe-18.04<5.4.0.159.176~18.04.127
5.4.0.159.176~18.04.127
=18.04
All of
ubuntu/linux-image-virtual-hwe-18.04<5.4.0.159.176~18.04.127
5.4.0.159.176~18.04.127
=18.04

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