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Ubuntu Security Notice USN-5758-1

Ubuntu Security Notice USN-5758-1
Posted Dec 2, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5758-1 - Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA mappings in some situations, leading to potential data structure reuse. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the video4linux driver for Empia based TV cards in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-3239, CVE-2022-3524, CVE-2022-3564, CVE-2022-3565, CVE-2022-3566, CVE-2022-3567, CVE-2022-3594, CVE-2022-3621, CVE-2022-3635, CVE-2022-3649, CVE-2022-40768, CVE-2022-42703, CVE-2022-43750
SHA-256 | 256eadaaba2ca6b555ffdca188a01a32a38b8869b53454c79b3151aafb702dc1

Ubuntu Security Notice USN-5758-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5758-1
December 01, 2022

linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
==========================================================================

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

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

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-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty

Details:

Jann Horn discovered that the Linux kernel did not properly track memory
allocations for anonymous VMA mappings in some situations, leading to
potential data structure reuse. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2022-42703)

It was discovered that the video4linux driver for Empia based TV cards in
the Linux kernel did not properly perform reference counting in some
situations, 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-2022-3239)

It was discovered that a memory leak existed in the IPv6 implementation of
the Linux kernel. A local attacker could use this to cause a denial of
service (memory exhaustion). (CVE-2022-3524)

It was discovered that a race condition existed in the Bluetooth 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-2022-3564)

It was discovered that the ISDN implementation of the Linux kernel
contained a use-after-free vulnerability. A privileged user could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3565)

It was discovered that the TCP implementation in the Linux kernel contained
a data race condition. An attacker could possibly use this to cause
undesired behaviors. (CVE-2022-3566)

It was discovered that the IPv6 implementation in the Linux kernel
contained a data race condition. An attacker could possibly use this to
cause undesired behaviors. (CVE-2022-3567)

It was discovered that the Realtek RTL8152 USB Ethernet adapter driver in
the Linux kernel did not properly handle certain error conditions. A local
attacker with physical access could plug in a specially crafted USB device
to cause a denial of service (memory exhaustion). (CVE-2022-3594)

It was discovered that a null pointer dereference existed in the NILFS2
file system implementation in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash). (CVE-2022-3621)

It was discovered that the IDT 77252 ATM PCI device driver in the Linux
kernel did not properly remove any pending timers during device exit,
resulting in a use-after-free vulnerability. A local attacker could
possibly use this to cause a denial of service (system crash) or execute
arbitrary code. (CVE-2022-3635)

Khalid Masum discovered that the NILFS2 file system implementation in the
Linux kernel did not properly handle certain error conditions, leading to a
use-after-free vulnerability. A local attacker could use this to cause a
denial of service or possibly execute arbitrary code. (CVE-2022-3649)

Xingyuan Mo and Gengjia Chen discovered that the Promise SuperTrak EX
storage controller driver in the Linux kernel did not properly handle
certain structures. A local attacker could potentially use this to expose
sensitive information (kernel memory). (CVE-2022-40768)

It was discovered that the USB monitoring (usbmon) component in the Linux
kernel did not properly set permissions on memory mapped in to user space
processes. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-43750)

Update instructions:

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

Ubuntu 16.04 ESM:
linux-image-4.4.0-1115-kvm 4.4.0-1115.125
linux-image-4.4.0-1152-aws 4.4.0-1152.167
linux-image-4.4.0-235-generic 4.4.0-235.269
linux-image-4.4.0-235-lowlatency 4.4.0-235.269
linux-image-aws 4.4.0.1152.156
linux-image-generic 4.4.0.235.241
linux-image-kvm 4.4.0.1115.112
linux-image-lowlatency 4.4.0.235.241
linux-image-virtual 4.4.0.235.241

Ubuntu 14.04 ESM:
linux-image-4.4.0-1114-aws 4.4.0-1114.120
linux-image-4.4.0-235-generic 4.4.0-235.269~14.04.1
linux-image-4.4.0-235-lowlatency 4.4.0-235.269~14.04.1
linux-image-aws 4.4.0.1114.111
linux-image-generic-lts-xenial 4.4.0.235.204
linux-image-lowlatency-lts-xenial 4.4.0.235.204
linux-image-virtual-lts-xenial 4.4.0.235.204

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-5758-1
CVE-2022-3239, CVE-2022-3524, CVE-2022-3564, CVE-2022-3565,
CVE-2022-3566, CVE-2022-3567, CVE-2022-3594, CVE-2022-3621,
CVE-2022-3635, CVE-2022-3649, CVE-2022-40768, CVE-2022-42703,
CVE-2022-43750
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