[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-5562-1)

[Oracle Ksplice]

Synopsis: USN-5562-1 can now be patched using Ksplice
CVEs: CVE-2022-0494 CVE-2022-1048 CVE-2022-1652 CVE-2022-1679 CVE-2022-1734 CVE-2022-1974 CVE-2022-1975 CVE-2022-2586 CVE-2022-2588 CVE-2022-28893 CVE-2022-34918

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-5562-1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Ubuntu 20.04
Focal install these updates.

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


DESCRIPTION

* CVE-2022-1048: Code execution in Advanced Linux Sound Architecture framework.

A race condition due to a missing locking in the Advanced Linux Sound
Architecture framework could result in a use-after-free. A local user
could use this flaw to cause a denial-of-service or execute arbitrary
code.


* CVE-2022-1974: Race condition when disconnecting NFC device causes DoS.

A race condition flaw in NFC subsystem when unregistering an NFC device
could result in a system crash due to improper logic checking whether
device shutdown is in progress. A malicious local user might exploit
this flaw to cause a denial-of-service.


* CVE-2022-0494: Information disclosure in block layer subsystem.

A flaw in ioctls of the block layer subsystem could result in improper
memory initialization. A local user could use this flaw for information
disclosure.


* CVE-2022-1975: Denial-of-service in NFC firmware update.

Incorrect allocation flags when downloading new NFC firmware to a device
might result in the kernel sleeping in an atomic context, resulting in a
potential deadlock or denial-of-service.


* CVE-2022-1652: Use-after-free in the floppy driver.

An error in concurrency logic of the floppy driver could lead to a
use-after-free. A local unprivileged user could use this flaw to cause
denial-of-service or potentially escalate privileges.


* CVE-2022-1679: Use-after-free in Atheros ath9k wireless device driver.

Improper handling of some error conditions in Atheros ath9k wireless
device driver could lead to a use-after-free. A local user could use
this flaw to cause a denial of service or execute arbitrary code.


* CVE-2022-28893: Use-after-free in SunRPC subsystem.

A logic flaw in the SUNRPC subsystem when setting up a new connection
could lead to a use-after-free due to improper socket state handling.
A local user could use this flaw to cause a denial-of-service or execute
arbitrary code.


* CVE-2022-1734: Use-after-free in Marvell NFC device driver.

A logic flaw in synchronization between firmware download and device
cleanup in the Marvell NFC device driver could lead to a use-after-free.
A local user could use this flaw to cause a denial-of-service or execute
arbitrary code.


* CVE-2022-2588: Use-after-free in IP Route Classifier.

A logic flaw in IP Route Classifier subsystem in some cases when
replacing a route filter could lead to a use-after-free. A local user
could use this flaw for denial-of-service or privilege escalation.


* CVE-2022-34918: Privilege escalation in Netfilter subsystem.

A type mismatch flaw in Netfilter subsystem when adding a new element to
NFT table could result in a buffer overflow. A local user could use this
flaw to escalate privileges.


* CVE-2022-2586: Use-after-free in Netfilter subsystem.

A logic flaw in the Netfilter subsystem when removing NFT table could
result in use-after-free. A local user could use this flaw to cause
a denial-of-service or code execution.

SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.