==========================================================================
Ubuntu Security Notice USN-6726-1
April 09, 2024<\/p>\n
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4,
linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4,
linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4,
linux-raspi, linux-raspi-5.4 vulnerabilities
==========================================================================<\/p>\n
A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS (Available with Ubuntu Pro)<\/p>\n
Summary:<\/p>\n
Several security issues were fixed in the Linux kernel.<\/p>\n
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-bluefield: Linux kernel for NVIDIA BlueField platforms
– linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
– linux-gkeop: Linux kernel for Google Container Engine (GKE) systems
– linux-ibm: Linux kernel for IBM cloud systems
– linux-kvm: Linux kernel for cloud environments
– linux-oracle: Linux kernel for Oracle Cloud systems
– linux-raspi: Linux kernel for Raspberry Pi systems
– linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems
– linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems
– linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems
– linux-hwe-5.4: Linux hardware enablement (HWE) kernel
– linux-ibm-5.4: Linux kernel for IBM cloud systems
– linux-oracle-5.4: Linux kernel for Oracle Cloud systems
– linux-raspi-5.4: Linux kernel for Raspberry Pi systems<\/p>\n
Details:<\/p>\n
Pratyush Yadav discovered that the Xen network backend implementation in
the Linux kernel did not properly handle zero length data request, leading
to a null pointer dereference vulnerability. An attacker in a guest VM
could possibly use this to cause a denial of service (host domain crash).
(CVE-2023-46838)<\/p>\n
It was discovered that the IPv6 implementation of the Linux kernel did not
properly manage route cache memory usage. A remote attacker could use this
to cause a denial of service (memory exhaustion). (CVE-2023-52340)<\/p>\n
It was discovered that the device mapper driver in the Linux kernel did not
properly validate target size during certain memory allocations. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2023-52429, CVE-2024-23851)<\/p>\n
Dan Carpenter discovered that the netfilter subsystem in the Linux kernel
did not store data in properly sized memory locations. A local user could
use this to cause a denial of service (system crash). (CVE-2024-0607)<\/p>\n
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
– Architecture specifics;
– Cryptographic API;
– Android drivers;
– EDAC drivers;
– GPU drivers;
– Media drivers;
– MTD block device drivers;
– Network drivers;
– NVME drivers;
– TTY drivers;
– Userspace I\/O drivers;
– F2FS file system;
– GFS2 file system;
– IPv6 Networking;
– AppArmor security module;
(CVE-2023-52464, CVE-2023-52448, CVE-2023-52457, CVE-2023-52443,
CVE-2023-52439, CVE-2023-52612, CVE-2024-26633, CVE-2024-26597,
CVE-2023-52449, CVE-2023-52444, CVE-2023-52609, CVE-2023-52469,
CVE-2023-52445, CVE-2023-52451, CVE-2023-52470, CVE-2023-52454,
CVE-2023-52436, CVE-2023-52438)<\/p>\n
Update instructions:<\/p>\n
The problem can be corrected by updating your system to the following
package versions:<\/p>\n
Ubuntu 20.04 LTS:
linux-image-5.4.0-1069-ibm 5.4.0-1069.74
linux-image-5.4.0-1082-bluefield 5.4.0-1082.89
linux-image-5.4.0-1089-gkeop 5.4.0-1089.93
linux-image-5.4.0-1106-raspi 5.4.0-1106.118
linux-image-5.4.0-1110-kvm 5.4.0-1110.117
linux-image-5.4.0-1121-oracle 5.4.0-1121.130
linux-image-5.4.0-1122-aws 5.4.0-1122.132
linux-image-5.4.0-1126-gcp 5.4.0-1126.135
linux-image-5.4.0-1127-azure 5.4.0-1127.134
linux-image-5.4.0-176-generic 5.4.0-176.196
linux-image-5.4.0-176-generic-lpae 5.4.0-176.196
linux-image-5.4.0-176-lowlatency 5.4.0-176.196
linux-image-aws-lts-20.04 5.4.0.1122.119
linux-image-azure-lts-20.04 5.4.0.1127.121
linux-image-bluefield 5.4.0.1082.78
linux-image-gcp-lts-20.04 5.4.0.1126.128
linux-image-generic 5.4.0.176.174
linux-image-generic-lpae 5.4.0.176.174
linux-image-gkeop 5.4.0.1089.87
linux-image-gkeop-5.4 5.4.0.1089.87
linux-image-ibm-lts-20.04 5.4.0.1069.98
linux-image-kvm 5.4.0.1110.106
linux-image-lowlatency 5.4.0.176.174
linux-image-oem 5.4.0.176.174
linux-image-oem-osp1 5.4.0.176.174
linux-image-oracle-lts-20.04 5.4.0.1121.114
linux-image-raspi 5.4.0.1106.136
linux-image-raspi2 5.4.0.1106.136
linux-image-virtual 5.4.0.176.174<\/p>\n
Ubuntu 18.04 LTS (Available with Ubuntu Pro):
linux-image-5.4.0-1069-ibm 5.4.0-1069.74~18.04.1
linux-image-5.4.0-1106-raspi 5.4.0-1106.118~18.04.1
linux-image-5.4.0-1121-oracle 5.4.0-1121.130~18.04.1
linux-image-5.4.0-1122-aws 5.4.0-1122.132~18.04.1
linux-image-5.4.0-1126-gcp 5.4.0-1126.135~18.04.1
linux-image-5.4.0-1127-azure 5.4.0-1127.134~18.04.1
linux-image-5.4.0-175-generic 5.4.0-175.195~18.04.1
linux-image-5.4.0-175-lowlatency 5.4.0-175.195~18.04.1
linux-image-aws 5.4.0.1122.132~18.04.1
linux-image-azure 5.4.0.1127.134~18.04.1
linux-image-gcp 5.4.0.1126.135~18.04.1
linux-image-generic-hwe-18.04 5.4.0.175.195~18.04.1
linux-image-ibm 5.4.0.1069.79
linux-image-lowlatency-hwe-18.04 5.4.0.175.195~18.04.1
linux-image-oem 5.4.0.175.195~18.04.1
linux-image-oem-osp1 5.4.0.175.195~18.04.1
linux-image-oracle 5.4.0.1121.130~18.04.1
linux-image-raspi-hwe-18.04 5.4.0.1106.103
linux-image-snapdragon-hwe-18.04 5.4.0.175.195~18.04.1
linux-image-virtual-hwe-18.04 5.4.0.175.195~18.04.1<\/p>\n
After a standard system update you need to reboot your computer to make
all the necessary changes.<\/p>\n
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.<\/p>\n
References:
https:\/\/ubuntu.com\/security\/notices\/USN-6726-1
CVE-2023-46838, CVE-2023-52340, CVE-2023-52429, CVE-2023-52436,
CVE-2023-52438, CVE-2023-52439, CVE-2023-52443, CVE-2023-52444,
CVE-2023-52445, CVE-2023-52448, CVE-2023-52449, CVE-2023-52451,
CVE-2023-52454, CVE-2023-52457, CVE-2023-52464, CVE-2023-52469,
CVE-2023-52470, CVE-2023-52609, CVE-2023-52612, CVE-2024-0607,
CVE-2024-23851, CVE-2024-26597, CVE-2024-26633<\/p>\n
Package Information:
https:\/\/launchpad.net\/ubuntu\/+source\/linux\/5.4.0-176.196
https:\/\/launchpad.net\/ubuntu\/+source\/linux-aws\/5.4.0-1122.132
https:\/\/launchpad.net\/ubuntu\/+source\/linux-azure\/5.4.0-1127.134
https:\/\/launchpad.net\/ubuntu\/+source\/linux-bluefield\/5.4.0-1082.89
https:\/\/launchpad.net\/ubuntu\/+source\/linux-gcp\/5.4.0-1126.135
https:\/\/launchpad.net\/ubuntu\/+source\/linux-gkeop\/5.4.0-1089.93
https:\/\/launchpad.net\/ubuntu\/+source\/linux-ibm\/5.4.0-1069.74
https:\/\/launchpad.net\/ubuntu\/+source\/linux-kvm\/5.4.0-1110.117
https:\/\/launchpad.net\/ubuntu\/+source\/linux-oracle\/5.4.0-1121.130
https:\/\/launchpad.net\/ubuntu\/+source\/linux-raspi\/5.4.0-1106.118<\/p>\n","protected":false},"excerpt":{"rendered":"
==========================================================================Ubuntu Security Notice USN-6726-1April 09, 2024 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4,linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4,linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4,linux-raspi, linux-raspi-5.4 vulnerabilities========================================================================== A security issue affects these releases of Ubuntu and its derivatives: – Ubuntu 20.04 LTS– Ubuntu 18.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in the Linux kernel. Software Description:– …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-56161","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/56161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=56161"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/56161\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=56161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=56161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=56161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}