LSN-0100-1: Kernel Live Patch Security Notice
7 February 2024
Several security issues were fixed in the kernel.
Releases
Software Description
- aws - Linux kernel for Amazon Web Services (AWS) systems - (>= 4.15.0-1054, >= 4.15.0-1119, >= 4.15.0-1159, >= 5.4.0-1009, >= 5.4.0-1061, >= 5.15.0-1000, >= 4.4.0-1098, >= 4.4.0-1129)
- aws-5.15 - Linux kernel for Amazon Web Services (AWS) systems - (>= 5.15.0-1000)
- aws-5.4 - Linux kernel for Amazon Web Services (AWS) systems - (>= 5.4.0-1069)
- aws-6.2 - Linux kernel for Amazon Web Services (AWS) systems - (>= 6.2.0-1007)
- aws-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems - (>= 4.15.0-1126)
- azure - Linux kernel for Microsoft Azure Cloud systems - (>= 5.4.0-1010, >= 5.15.0-1000, >= 4.15.0-1063, >= 4.15.0-1078, >= 4.15.0-1114)
- azure-4.15 - Linux kernel for Microsoft Azure Cloud systems - (>= 4.15.0-1115, >= 4.15.0-1168)
- azure-5.4 - Linux kernel for Microsoft Azure cloud systems - (>= 5.4.0-1069)
- azure-6.2 - Linux kernel for Microsoft Azure cloud systems - (>= 6.2.0-1000)
- gcp - Linux kernel for Google Cloud Platform (GCP) systems - (>= 5.4.0-1009, >= 5.15.0-1000, >= 4.15.0-1118)
- gcp-4.15 - Linux kernel for Google Cloud Platform (GCP) systems - (>= 4.15.0-1154, >= 4.15.0-1121)
- gcp-5.15 - Linux kernel for Google Cloud Platform (GCP) systems - (>= 5.15.0-1000)
- gcp-5.4 - Linux kernel for Google Cloud Platform (GCP) systems - (>= 5.4.0-1069)
- gcp-6.2 - Linux kernel for Google Cloud Platform (GCP) systems - (>= 6.2.0-1000)
- generic-4.15 - Linux hardware enablement (HWE) kernel - (>= 4.15.0-69, >= 4.15.0-214, >= 4.15.0-143, >= 4.15.0-143, >= 4.15.0-69)
- generic-4.4 - Linux kernel - (>= 4.4.0-168, >= 4.4.0-211, >= 4.4.0-168)
- generic-5.15 - Linux hardware enablement (HWE) kernel - (>= 5.15.0-0)
- generic-5.4 - Linux kernel - (>= 5.4.0-26, >= 5.4.0-26)
- gke - Linux kernel for Google Container Engine (GKE) systems - (>= 5.4.0-1033, >= 5.15.0-1000)
- gke-5.15 - Linux kernel for Google Container Engine (GKE) systems - (>= 5.15.0-1000)
- gkeop - Linux kernel for Google Container Engine (GKE) systems - (>= 5.4.0-1009)
- hwe-6.2 - Linux hardware enablement (HWE) kernel - (>= 6.2.0-20)
- ibm - Linux kernel for IBM cloud systems - (>= 5.4.0-1009, >= 5.15.0-1000)
- ibm-5.15 - Linux kernel for IBM cloud systems - (>= 5.15.0-1000)
- linux - Linux kernel - (>= 5.15.0-71, >= 5.15.0-24)
- lowlatency-4.15 - Linux hardware enablement (HWE) kernel - (>= 4.15.0-69, >= 4.15.0-214, >= 4.15.0-143, >= 4.15.0-143, >= 4.15.0-69)
- lowlatency-4.4 - Linux kernel - (>= 4.4.0-168, >= 4.4.0-211, >= 4.4.0-168)
- lowlatency-5.15 - Linux hardware enablement (HWE) kernel - (>= 5.15.0-0)
- lowlatency-5.4 - Linux kernel - (>= 5.4.0-26, >= 5.4.0-26)
Details
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)
Lin Ma discovered that the netfilter subsystem in the Linux kernel did not
properly validate network family support while creating a new netfilter
table. A local attacker could use this to cause a denial of service or
possibly execute arbitrary code.(CVE-2023-6040)
It was discovered that the TLS subsystem in the Linux kernel did not
properly perform cryptographic operations in some situations, leading to a
null pointer dereference vulnerability. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code.(CVE-2023-6176)
Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did
not properly handle inactive elements in its PIPAPO data structure, 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-2023-6817)
It was discovered that the IGMP protocol implementation in the Linux kernel
contained a race condition, 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-2023-6932)
Checking update status
The problem can be corrected in these Livepatch versions:
| Kernel type | 22.04 | 20.04 | 18.04 | 16.04 | 14.04 |
|---|---|---|---|---|---|
| aws | 100.1 | 100.1 | 100.1 | 100.1 | — |
| aws-5.15 | — | 100.1 | — | — | — |
| aws-5.4 | — | — | 100.1 | — | — |
| aws-6.2 | 100.1 | — | — | — | — |
| aws-hwe | — | — | — | 100.1 | — |
| azure | 100.1 | 100.1 | — | 100.1 | — |
| azure-4.15 | — | — | 100.1 | — | — |
| azure-5.4 | — | — | 100.1 | — | — |
| azure-6.2 | 100.1 | — | — | — | — |
| gcp | 100.1 | 100.1 | — | 100.1 | — |
| gcp-4.15 | — | — | 100.1 | — | — |
| gcp-5.15 | — | 100.1 | — | — | — |
| gcp-5.4 | — | — | 100.1 | — | — |
| gcp-6.2 | 100.1 | — | — | — | — |
| generic-4.15 | — | — | 100.1 | 100.1 | — |
| generic-4.4 | — | — | — | 100.1 | 100.1 |
| generic-5.15 | — | 100.1 | — | — | — |
| generic-5.4 | — | 100.1 | 100.1 | — | — |
| gke | 100.1 | 100.1 | — | — | — |
| gke-5.15 | — | 100.1 | — | — | — |
| gkeop | — | 100.1 | — | — | — |
| hwe-6.2 | 100.1 | — | — | — | — |
| ibm | 100.1 | 100.1 | — | — | — |
| ibm-5.15 | — | 100.1 | — | — | — |
| linux | 100.1 | — | — | — | — |
| lowlatency-4.15 | — | — | 100.1 | 100.1 | — |
| lowlatency-4.4 | — | — | — | 100.1 | 100.1 |
| lowlatency-5.15 | — | 100.1 | — | — | — |
| lowlatency-5.4 | — | 100.1 | 100.1 | — | — |
To check your kernel type and Livepatch version, enter this command:
canonical-livepatch status