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

Ubuntu Security Notice USN-6494-1

Ubuntu Security Notice USN-6494-1
Posted Nov 22, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6494-1 - Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service. Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service or possibly expose sensitive information.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-31085, CVE-2023-39189, CVE-2023-39192, CVE-2023-39193, CVE-2023-39194, CVE-2023-42754, CVE-2023-45862, CVE-2023-45871, CVE-2023-5717
SHA-256 | b8155c22b0aee7834c05ed29a1774d0847591054fd409c28e4a01741d747e025

Ubuntu Security Notice USN-6494-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-6494-1
November 21, 2023

linux, linux-aws, linux-aws-hwe, linux-hwe, linux-kvm, linux-oracle
vulnerabilities
==========================================================================

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

- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

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-kvm: Linux kernel for cloud environments
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems
- linux-hwe: Linux hardware enablement (HWE) kernel
- linux-oracle: Linux kernel for Oracle Cloud systems

Details:

Yu Hao discovered that the UBI driver in the Linux kernel did not properly
check for MTD with zero erasesize during device attachment. A local
privileged attacker could use this to cause a denial of service (system
crash). (CVE-2023-31085)

Lucas Leong discovered that the netfilter subsystem in the Linux kernel did
not properly validate some attributes passed from userspace. A local
attacker could use this to cause a denial of service (system crash) or
possibly expose sensitive information (kernel memory). (CVE-2023-39189)

Sunjoo Park discovered that the netfilter subsystem in the Linux kernel did
not properly validate u32 packets content, leading to an out-of-bounds read
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly expose sensitive information. (CVE-2023-39192)

Lucas Leong discovered that the netfilter subsystem in the Linux kernel did
not properly validate SCTP data, leading to an out-of-bounds read
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly expose sensitive information. (CVE-2023-39193)

Lucas Leong discovered that the Netlink Transformation (XFRM) subsystem in
the Linux kernel did not properly handle state filters, leading to an out-
of-bounds read vulnerability. A privileged local attacker could use this to
cause a denial of service (system crash) or possibly expose sensitive
information. (CVE-2023-39194)

Kyle Zeng discovered that the IPv4 implementation in the Linux kernel did
not properly handle socket buffers (skb) when performing IP routing in
certain circumstances, leading to a null pointer dereference vulnerability.
A privileged attacker could use this to cause a denial of service (system
crash). (CVE-2023-42754)

It was discovered that the USB ENE card reader driver in the Linux
kernel did not properly allocate enough memory when processing the
storage device boot blocks. A local attacker could use this to cause
a denial of service (system crash). (CVE-2023-45862)

Manfred Rudigier discovered that the Intel(R) PCI-Express Gigabit (igb)
Ethernet driver in the Linux kernel did not properly validate received
frames that are larger than the set MTU size, leading to a buffer overflow
vulnerability. An attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2023-45871)

Budimir Markovic discovered that the perf subsystem in the Linux kernel
did not properly handle event groups, 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-2023-5717)

Update instructions:

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
linux-image-4.15.0-1147-kvm 4.15.0-1147.152
linux-image-4.15.0-1163-aws 4.15.0-1163.176
linux-image-4.15.0-220-generic 4.15.0-220.231
linux-image-4.15.0-220-lowlatency 4.15.0-220.231
linux-image-aws-lts-18.04 4.15.0.1163.161
linux-image-generic 4.15.0.220.204
linux-image-kvm 4.15.0.1147.138
linux-image-lowlatency 4.15.0.220.204
linux-image-virtual 4.15.0.220.204

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
linux-image-4.15.0-1126-oracle 4.15.0-1126.137~16.04.1
linux-image-4.15.0-1163-aws 4.15.0-1163.176~16.04.1
linux-image-4.15.0-220-generic 4.15.0-220.231~16.04.1
linux-image-4.15.0-220-lowlatency 4.15.0-220.231~16.04.1
linux-image-aws-hwe 4.15.0.1163.146
linux-image-generic-hwe-16.04 4.15.0.220.4
linux-image-lowlatency-hwe-16.04 4.15.0.220.4
linux-image-oem 4.15.0.220.4
linux-image-oracle 4.15.0.1126.107
linux-image-virtual-hwe-16.04 4.15.0.220.4

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-6494-1
CVE-2023-31085, CVE-2023-39189, CVE-2023-39192, CVE-2023-39193,
CVE-2023-39194, CVE-2023-42754, CVE-2023-45862, CVE-2023-45871,
CVE-2023-5717

Login or Register to add favorites

File Archive:

February 2024

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close