[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-5384-1)
Oracle Ksplice
quentin.casasnovas at oracle.com
Wed Apr 27 09:08:46 UTC 2022
Synopsis: USN-5384-1 can now be patched using Ksplice
CVEs: CVE-2020-36516 CVE-2022-0617 CVE-2022-24448 CVE-2022-24959
Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-5384-1.
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-2022-0617: NULL-pointer dereference when processing UDF metadata.
When converting a UDF filesystem control block to its expanded form, an
invalid block could result in a NULL callback being invoked, resulting
in a system crash. A malicious user or filesystem image might exploit
this to cause a denial-of-service.
* CVE-2022-24448: Information leak when NFSv4 directory lookup fails.
If an open is performed with O_DIRECTORY on a regular file mounted over
NFSv4, the returned file descriptor will be uninitialized, potentially
leaking sensitive kernel information.
* CVE-2022-24959: Denial-of-service in YAM AX.25 device driver.
A bad error handling flaw in the YAM AX.25 device driver could happen
due to improper memory deallocation in some error conditions and cause
memory leaks. A local privileged user could use this flaw for a denial
of service.
* CVE-2020-36516: Man-in-the-Middle Attack in TCP/IP Protocol.
A flaw in TCP/IP Protocol implementation could allow an off-path TCP
hijacking attack that could be used to terminate victim TCP connections
or inject forged data into victim TCP connections by manipulating
the mixed IPID assignment method. A remote user could use this flaw
to perform a Man-in-the-Middle Attack.
SUPPORT
Ksplice support is available at ksplice-support_ww at oracle.com.
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