El-errata: New Ksplice updates for RHCK 9 (ELSA-2023-0951)

Synopsis: ELSA-2023-0951 can now be patched using Ksplice
CVEs: CVE-2022-2873 CVE-2022-3564 CVE-2022-4378 CVE-2022-4379 CVE-2023-0179

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2023-0951.
More information about this errata can be found at
  https://linux.oracle.com/errata/ELSA-2023-0951.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running RHCK 9 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-2022-4378: Out-of-bounds memory access in sysctl.

A flaw parsing character strings in the sysctl subsystem when changing
kernel parameters can lead to a stack overflow. A local user could use
this flaw for a denial-of-service or arbitrary code execution.

* CVE-2022-3564: Use-after-free in Bluetooth L2CAP.

A race condition in Bluetooth L2CAP when a socket buffer is queued and
dequeued by two flows running in parallel can lead to a use-after-free.
A remote attacker could use this flaw for a denial-of-service or
for privilege escalation.

* CVE-2023-0179: Denial-of-service when handling VLAN headers.

A logic error in the handling of VLAN headers in netfilter could lead to
an out-of-bounds access. A local attacker could use this flaw to cause a
denial-of-service or execute arbitrary code.

* CVE-2022-2873: Out-of-bounds memory access in iSMT.

A missing sanity check for a user controlled value in the Intel's iSMT
SMBus host controller driver when processing an SMBus command may lead
to a memory corruption by writing past the end of a buffer. A local
user could use this flaw for denial-of-service or code execution.

* CVE-2022-4379: Denial-of-service in NFS version 4 client.

A use-after-free flaw in NFS4 when when handling a server-to-server copy
may cause an invalid pointer dereference. A remote attacker could use this
flaw for a denial-of-service.

SUPPORT

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


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