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Linux kernel vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 22.04 LTS
Summary
Several security issues were fixed in the kernel.
Software Description
- linux - Linux kernel
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-azure - Linux kernel for Microsoft Azure Cloud systems
- linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke - Linux kernel for Google Container Engine (GKE) systems
- linux-gkeop - Linux kernel for Google Container Engine (GKE) systems
- linux-ibm - Linux kernel for IBM cloud systems
- linux-oem - Linux kernel for OEM systems
Details
Davide Ornaghi discovered that the netfilter subsystem in the Linux
kernel did not properly handle VLAN headers in some situations. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2023-0179)
It was discovered that the Upper Level Protocol (ULP) subsystem in the
Linux kernel did not properly handle sockets entering the LISTEN state
in certain protocols, 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-2023-0461)
Update instructions
The problem can be corrected by updating your kernel livepatch to the
following versions:
Ubuntu 20.04 LTS
aws - 93.1
azure - 93.1
gcp - 93.1
gcp - 93.2
generic - 93.1
gke - 93.1
gke - 93.2
gkeop - 93.1
ibm - 93.1
lowlatency - 93.1
Ubuntu 18.04 LTS
aws - 93.1
azure - 93.1
gcp - 93.1
generic - 93.1
gke - 93.1
gkeop - 93.1
lowlatency - 93.1
oem - 93.1
Ubuntu 16.04 ESM
aws - 93.1
azure - 93.1
gcp - 93.1
generic - 93.1
lowlatency - 93.1
Ubuntu 22.04 LTS
aws - 93.1
azure - 93.1
gcp - 93.1
generic - 93.1
gke - 93.1
ibm - 93.1
Support Information
Kernels older than the levels listed below do not receive livepatch
updates. If you are running a kernel version earlier than the one listed
below, please upgrade your kernel as soon as possible.
Ubuntu 20.04 LTS
linux-aws-5.15 - 5.15.0-1000
linux-aws - 5.4.0-1009
linux-aws - 5.4.0-1061
linux-azure-5.15 - 5.15.0-1069
linux-azure - 5.4.0-1010
linux-gcp-5.15 - 5.15.0-1000
linux-gcp - 5.4.0-1009
linux-gke-5.15 - 5.15.0-1000
linux-gke - 5.4.0-1033
linux-gkeop - 5.4.0-1009
linux-hwe - 5.15.0-0
linux-ibm-5.15 - 5.15.0-1000
linux-ibm - 5.4.0-1009
linux-oem - 5.4.0-26
linux - 5.4.0-26
Ubuntu 18.04 LTS
linux-aws-5.4 - 5.4.0-1069
linux-aws - 4.15.0-1054
linux-aws - 4.15.0-1119
linux-azure-4.15 - 4.15.0-1115
linux-azure-5.4 - 5.4.0-1069
linux-gcp-4.15 - 4.15.0-1121
linux-gcp-5.4 - 5.4.0-1069
linux-gke-4.15 - 4.15.0-1076
linux-gke-5.4 - 5.4.0-1009
linux-gkeop-5.4 - 5.4.0-1007
linux-hwe-5.4 - 5.4.0-26
linux-ibm-5.4 - 5.4.0-1009
linux-oem - 4.15.0-1063
linux - 4.15.0-69
Ubuntu 16.04 ESM
linux-aws-hwe - 4.15.0-1126
linux-aws - 4.4.0-1098
linux-aws - 4.4.0-1129
linux-azure - 4.15.0-1063
linux-azure - 4.15.0-1078
linux-azure - 4.15.0-1114
linux-gcp - 4.15.0-1118
linux-hwe - 4.15.0-143
linux-hwe - 4.15.0-69
linux - 4.4.0-168
linux - 4.4.0-211
Ubuntu 22.04 LTS
linux-aws - 5.15.0-1000
linux-azure - 5.15.0-1000
linux-gcp - 5.15.0-1000
linux-gke - 5.15.0-1000
linux-ibm - 5.15.0-1000
linux - 5.15.0-24
linux - 5.15.0-25
Ubuntu 14.04 ESM
linux-lts-xenial - 4.4.0-168
References
- CVE-2023-0179
- CVE-2023-0461
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