LSN-0102-1: Kernel Live Patch Security Notice
3 April 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, >= 4.4.0-1159)
- 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-6.5 - Linux kernel for Amazon Web Services (AWS) systems - (>= 6.5.0-1007)
- 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-6.5 - Linux kernel for Microsoft Azure cloud systems - (>= 6.5.0-1000)
- 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-6.5 - Linux kernel for Google Cloud Platform (GCP) systems - (>= 6.5.0-1000)
- 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, >= 4.4.0-243, >= 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, >= 5.4.0-150, >= 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-6.5 - Linux hardware enablement (HWE) kernel - (>= 6.5.0-5)
- 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 - Linux low latency kernel - (>= 5.15.0-25)
- 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, >= 4.4.0-243, >= 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, >= 5.4.0-150, >= 5.4.0-26)
Details
It was discovered that a race condition existed in the io_uring subsystem
in the Linux kernel, 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-2023-1872)
Lonial Con discovered that the netfilter subsystem in the Linux kernel
contained a memory leak when handling certain element flush operations. A
local attacker could use this to expose sensitive information (kernel
memory).(CVE-2023-4569)
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)
It was discovered that a race condition existed in the AppleTalk networking
subsystem of the Linux kernel, 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-2023-51781)
Jann Horn discovered that the TLS subsystem in the Linux kernel did not
properly handle spliced messages, leading to 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-2024-0646)
Notselwyn discovered that the netfilter subsystem in the Linux kernel did
not properly handle verdict parameters in certain cases, 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-2024-1086)
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 | 102.1 | 102.1 | 102.1 | 102.1 | — |
| aws-5.15 | — | 102.1 | — | — | — |
| aws-5.4 | — | — | 102.1 | — | — |
| aws-6.5 | 102.1 | — | — | — | — |
| aws-hwe | — | — | — | 102.1 | — |
| azure | 102.1 | 102.1 | — | 102.1 | — |
| azure-4.15 | — | — | 102.1 | — | — |
| azure-5.4 | — | — | 102.1 | — | — |
| azure-6.5 | 102.1 | — | — | — | — |
| gcp | 102.1 | 102.1 | — | 102.1 | — |
| gcp-4.15 | — | — | 102.1 | — | — |
| gcp-5.15 | — | 102.1 | — | — | — |
| gcp-5.4 | — | — | 102.1 | — | — |
| gcp-6.5 | 102.1 | — | — | — | — |
| generic-4.15 | — | — | 102.1 | 102.1 | — |
| generic-4.4 | — | — | — | 102.1 | 102.1 |
| generic-5.15 | — | 102.1 | — | — | — |
| generic-5.4 | — | 102.1 | 102.1 | — | — |
| gke | 102.1 | 102.1 | — | — | — |
| gke-5.15 | — | 102.1 | — | — | — |
| gkeop | — | 102.1 | — | — | — |
| hwe-6.5 | 102.1 | — | — | — | — |
| ibm | 102.1 | 102.1 | — | — | — |
| ibm-5.15 | — | 102.1 | — | — | — |
| linux | 102.1 | — | — | — | — |
| lowlatency | 102.1 | — | — | — | — |
| lowlatency-4.15 | — | — | 102.1 | 102.1 | — |
| lowlatency-4.4 | — | — | — | 102.1 | 102.1 |
| lowlatency-5.15 | — | 102.1 | — | — | — |
| lowlatency-5.4 | — | 102.1 | 102.1 | — | — |
To check your kernel type and Livepatch version, enter this command:
canonical-livepatch status