exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Ubuntu Security Notice USN-5622-1

Ubuntu Security Notice USN-5622-1
Posted Sep 21, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5622-1 - It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-33655, CVE-2022-1729, CVE-2022-2503, CVE-2022-32296, CVE-2022-36946
SHA-256 | 5c33f90fb992303748572c66b36601509148fb06281517205f43d8b46f9c7a99

Ubuntu Security Notice USN-5622-1

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-5622-1
September 21, 2022

linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4,
linux-bluefield, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4,
linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux 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-bluefield: Linux kernel for NVIDIA BlueField platforms
- 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-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

Details:

It was discovered that the framebuffer driver on the Linux kernel did not
verify size limits when changing font or screen size, leading to an out-of-
bounds write. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation
in the Linux kernel did not provide sufficient randomization when
calculating port offsets. An attacker could possibly use this to expose
sensitive information. (CVE-2022-1012, CVE-2022-32296)

Norbert Slusarek discovered that a race condition existed in the perf
subsystem in the Linux kernel, resulting in a use-after-free vulnerability.
A privileged local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-1729)

It was discovered that the device-mapper verity (dm-verity) driver in the
Linux kernel did not properly verify targets being loaded into the device-
mapper table. A privileged attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2022-2503)

Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter
subsystem in the Linux kernel did not properly handle rules that truncated
packets below the packet header size. When such rules are in place, a
remote attacker could possibly use this to cause a denial of service
(system crash). (CVE-2022-36946)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
linux-image-5.4.0-1033-ibm 5.4.0-1033.37
linux-image-5.4.0-1046-bluefield 5.4.0-1046.51
linux-image-5.4.0-1053-gkeop 5.4.0-1053.56
linux-image-5.4.0-1070-raspi 5.4.0-1070.80
linux-image-5.4.0-1075-kvm 5.4.0-1075.80
linux-image-5.4.0-1083-oracle 5.4.0-1083.91
linux-image-5.4.0-1085-aws 5.4.0-1085.92
linux-image-5.4.0-1091-azure 5.4.0-1091.96
linux-image-5.4.0-126-generic 5.4.0-126.142
linux-image-5.4.0-126-generic-lpae 5.4.0-126.142
linux-image-5.4.0-126-lowlatency 5.4.0-126.142
linux-image-aws-lts-20.04 5.4.0.1085.85
linux-image-azure-lts-20.04 5.4.0.1091.88
linux-image-bluefield 5.4.0.1046.45
linux-image-generic 5.4.0.126.127
linux-image-generic-lpae 5.4.0.126.127
linux-image-gkeop 5.4.0.1053.54
linux-image-gkeop-5.4 5.4.0.1053.54
linux-image-ibm 5.4.0.1033.62
linux-image-ibm-lts-20.04 5.4.0.1033.62
linux-image-kvm 5.4.0.1075.72
linux-image-lowlatency 5.4.0.126.127
linux-image-oem 5.4.0.126.127
linux-image-oem-osp1 5.4.0.126.127
linux-image-oracle-lts-20.04 5.4.0.1083.80
linux-image-raspi 5.4.0.1070.103
linux-image-raspi2 5.4.0.1070.103
linux-image-virtual 5.4.0.126.127

Ubuntu 18.04 LTS:
linux-image-5.4.0-1033-ibm 5.4.0-1033.37~18.04.1
linux-image-5.4.0-1083-oracle 5.4.0-1083.91~18.04.1
linux-image-5.4.0-1085-aws 5.4.0-1085.92~18.04.1
linux-image-5.4.0-1091-azure 5.4.0-1091.96~18.04.1
linux-image-5.4.0-126-generic 5.4.0-126.142~18.04.1
linux-image-5.4.0-126-generic-lpae 5.4.0-126.142~18.04.1
linux-image-5.4.0-126-lowlatency 5.4.0-126.142~18.04.1
linux-image-aws 5.4.0.1085.65
linux-image-azure 5.4.0.1091.68
linux-image-generic-hwe-18.04 5.4.0.126.142~18.04.106
linux-image-generic-lpae-hwe-18.04 5.4.0.126.142~18.04.106
linux-image-ibm 5.4.0.1033.47
linux-image-lowlatency-hwe-18.04 5.4.0.126.142~18.04.106
linux-image-oem 5.4.0.126.142~18.04.106
linux-image-oem-osp1 5.4.0.126.142~18.04.106
linux-image-oracle 5.4.0.1083.91~18.04.60
linux-image-snapdragon-hwe-18.04 5.4.0.126.142~18.04.106
linux-image-virtual-hwe-18.04 5.4.0.126.142~18.04.106

After a standard system update you need to reboot your computer to make
all the necessary changes.

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.

References:
https://ubuntu.com/security/notices/USN-5622-1
CVE-2021-33655, CVE-2022-1012, CVE-2022-1729, CVE-2022-2503,
CVE-2022-32296, CVE-2022-36946

Package Information:
https://launchpad.net/ubuntu/+source/linux/5.4.0-126.142
https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1085.92
https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1091.96
https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1046.51
https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1053.56
https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1033.37
https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1075.80
https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1083.91
https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1070.80
https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1085.92~18.04.1
https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1091.96~18.04.1
https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-126.142~18.04.1
https://launchpad.net/ubuntu/+source/linux-ibm-5.4/5.4.0-1033.37~18.04.1
https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1083.91~18.04.1
Login or Register to add favorites

File Archive:

October 2022

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Oct 1st
    10 Files
  • 2
    Oct 2nd
    0 Files
  • 3
    Oct 3rd
    12 Files
  • 4
    Oct 4th
    15 Files
  • 5
    Oct 5th
    18 Files
  • 6
    Oct 6th
    0 Files
  • 7
    Oct 7th
    0 Files
  • 8
    Oct 8th
    0 Files
  • 9
    Oct 9th
    0 Files
  • 10
    Oct 10th
    0 Files
  • 11
    Oct 11th
    0 Files
  • 12
    Oct 12th
    0 Files
  • 13
    Oct 13th
    0 Files
  • 14
    Oct 14th
    0 Files
  • 15
    Oct 15th
    0 Files
  • 16
    Oct 16th
    0 Files
  • 17
    Oct 17th
    0 Files
  • 18
    Oct 18th
    0 Files
  • 19
    Oct 19th
    0 Files
  • 20
    Oct 20th
    0 Files
  • 21
    Oct 21st
    0 Files
  • 22
    Oct 22nd
    0 Files
  • 23
    Oct 23rd
    0 Files
  • 24
    Oct 24th
    0 Files
  • 25
    Oct 25th
    0 Files
  • 26
    Oct 26th
    0 Files
  • 27
    Oct 27th
    0 Files
  • 28
    Oct 28th
    0 Files
  • 29
    Oct 29th
    0 Files
  • 30
    Oct 30th
    0 Files
  • 31
    Oct 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Hosting By
Rokasec
close