Ubuntu Security Notice USN-5544-1 ≈ Packet Storm

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Ubuntu Security Notice USN-5544-1
August 02, 2022
linux, linux-hwe-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15
vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux: Linux kernel
- linux-lowlatency: Linux low latency kernel
- linux-hwe-5.15: Linux hardware enablement (HWE) kernel
- linux-lowlatency-hwe-5.15: Linux low latency kernel
Details:
It was discovered that the Atheros ath9k wireless device driver in the
Linux kernel did not properly handle some error conditions, 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-2022-1679)
Felix Fu discovered that the Sun RPC implementation in the Linux kernel did
not properly handle socket states, leading to a use-after-free
vulnerability. A remote attacker could possibly use this to cause a denial
of service (system crash) or execute arbitrary code. (CVE-2022-28893)
Arthur Mongodin discovered that the netfilter subsystem in the Linux kernel
did not properly perform data validation. A local attacker could use this
to escalate privileges in certain situations. (CVE-2022-34918)
Minh Yuan discovered that the floppy disk driver in the Linux kernel
contained a race condition, leading to 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-2022-1652)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
linux-image-5.15.0-43-generic   5.15.0-43.46
linux-image-5.15.0-43-generic-64k  5.15.0-43.46
linux-image-5.15.0-43-generic-lpae  5.15.0-43.46
linux-image-5.15.0-43-lowlatency  5.15.0-43.46
linux-image-5.15.0-43-lowlatency-64k  5.15.0-43.46
linux-image-generic             5.15.0.43.44
linux-image-generic-64k         5.15.0.43.44
linux-image-generic-64k-hwe-22.04  5.15.0.43.44
linux-image-generic-hwe-22.04   5.15.0.43.44
linux-image-generic-lpae        5.15.0.43.44
linux-image-generic-lpae-hwe-22.04  5.15.0.43.44
linux-image-lowlatency          5.15.0.43.41
linux-image-lowlatency-64k      5.15.0.43.41
linux-image-lowlatency-64k-hwe-22.04  5.15.0.43.41
linux-image-lowlatency-hwe-22.04  5.15.0.43.41
linux-image-oem-20.04           5.15.0.43.44
linux-image-virtual             5.15.0.43.44
linux-image-virtual-hwe-22.04   5.15.0.43.44
Ubuntu 20.04 LTS:
linux-image-5.15.0-43-generic   5.15.0-43.46~20.04.1
linux-image-5.15.0-43-generic-64k  5.15.0-43.46~20.04.1
linux-image-5.15.0-43-generic-lpae  5.15.0-43.46~20.04.1
linux-image-5.15.0-43-lowlatency  5.15.0-43.46~20.04.1
linux-image-5.15.0-43-lowlatency-64k  5.15.0-43.46~20.04.1
linux-image-generic-64k-hwe-20.04  5.15.0.43.46~20.04.14
linux-image-generic-hwe-20.04   5.15.0.43.46~20.04.14
linux-image-generic-lpae-hwe-20.04  5.15.0.43.46~20.04.14
linux-image-lowlatency-64k-hwe-20.04  5.15.0.43.46~20.04.13
linux-image-lowlatency-hwe-20.04  5.15.0.43.46~20.04.13
linux-image-virtual-hwe-20.04   5.15.0.43.46~20.04.14
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-5544-1
CVE-2022-1652, CVE-2022-1679, CVE-2022-28893, CVE-2022-34918
Package Information:
https://launchpad.net/ubuntu/+source/linux/5.15.0-43.46
https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-43.46
https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-43.46~20.04.1
https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-43.46~20.04.1