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

Ubuntu Security Notice USN-5630-1

Ubuntu Security Notice USN-5630-1
Posted Sep 23, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5630-1 - 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 | c7c0c0227fda6e6bf4499a2c48b667c084b37cc6c2d87ab84b3410ec00d70af1

Ubuntu Security Notice USN-5630-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5630-1
September 22, 2022

linux-raspi-5.4 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-raspi-5.4: Linux kernel for Raspberry Pi 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 18.04 LTS:
linux-image-5.4.0-1070-raspi 5.4.0-1070.80~18.04.1
linux-image-raspi-hwe-18.04 5.4.0.1070.70

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-5630-1
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-raspi-5.4/5.4.0-1070.80~18.04.1
Login or Register to add favorites

File Archive:

December 2022

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Hosting By
Rokasec
close