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Ubuntu Security Notice USN-5493-1

Ubuntu Security Notice USN-5493-1
Posted Jun 27, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5493-1 - It was discovered that the 8 Devices USB2CAN interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-28388
SHA-256 | aba96a2ada06641504d1bb9ac2a3c0ed4c3e957107d4dca892497c06c4bf64fc

Ubuntu Security Notice USN-5493-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5493-1
June 27, 2022

linux, linux-hwe vulnerability
==========================================================================

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

- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM

Summary:

The system could be made to crash under certain conditions.

Software Description:
- linux: Linux kernel
- linux-hwe: Linux hardware enablement (HWE) kernel

Details:

It was discovered that the 8 Devices USB2CAN interface implementation in
the Linux kernel did not properly handle certain error conditions, leading
to a double-free. A local attacker could possibly use this to cause a
denial of service (system crash).

Update instructions:

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

Ubuntu 21.10:
linux-image-5.13.0-52-generic 5.13.0-52.59
linux-image-5.13.0-52-generic-64k 5.13.0-52.59
linux-image-5.13.0-52-generic-lpae 5.13.0-52.59
linux-image-5.13.0-52-lowlatency 5.13.0-52.59
linux-image-generic 5.13.0.52.58
linux-image-generic-64k 5.13.0.52.58
linux-image-generic-lpae 5.13.0.52.58
linux-image-lowlatency 5.13.0.52.58
linux-image-oem-20.04 5.13.0.52.58
linux-image-virtual 5.13.0.52.58

Ubuntu 20.04 LTS:
linux-image-5.4.0-121-generic 5.4.0-121.137
linux-image-5.4.0-121-generic-lpae 5.4.0-121.137
linux-image-5.4.0-121-lowlatency 5.4.0-121.137
linux-image-generic 5.4.0.121.122
linux-image-generic-lpae 5.4.0.121.122
linux-image-lowlatency 5.4.0.121.122
linux-image-oem 5.4.0.121.122
linux-image-oem-osp1 5.4.0.121.122
linux-image-virtual 5.4.0.121.122

Ubuntu 18.04 LTS:
linux-image-4.15.0-188-generic 4.15.0-188.199
linux-image-4.15.0-188-generic-lpae 4.15.0-188.199
linux-image-4.15.0-188-lowlatency 4.15.0-188.199
linux-image-generic 4.15.0.188.173
linux-image-generic-lpae 4.15.0.188.173
linux-image-lowlatency 4.15.0.188.173
linux-image-virtual 4.15.0.188.173

Ubuntu 16.04 ESM:
linux-image-4.15.0-188-generic 4.15.0-188.199~16.04.1
linux-image-4.15.0-188-lowlatency 4.15.0-188.199~16.04.1
linux-image-generic-hwe-16.04 4.15.0.188.175
linux-image-lowlatency-hwe-16.04 4.15.0.188.175
linux-image-oem 4.15.0.188.175
linux-image-virtual-hwe-16.04 4.15.0.188.175

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-5493-1
CVE-2022-28388

Package Information:
https://launchpad.net/ubuntu/+source/linux/5.13.0-52.59
https://launchpad.net/ubuntu/+source/linux/5.4.0-121.137
https://launchpad.net/ubuntu/+source/linux/4.15.0-188.199

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