[Ksplice][EL7-Updates] New Ksplice updates for OL 7, RHEL 7, CentOS 7, and Scientific Linux 7 (RHSA-2024:1249)

[Oracle Ksplice]

Synopsis: RHSA-2024:1249 can now be patched using Ksplice
CVEs: CVE-2022-42896 CVE-2023-38409 CVE-2023-45871 CVE-2023-4921 CVE-2024-1086 CVE-2024-26602

Systems running RHCK on Oracle Linux 7, Red Hat Enterprise Linux 7,
CentOS 7, and Scientific Linux 7 can now use Ksplice to patch against
the latest Red Hat Security Advisory, RHSA-2024:1249.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running OL 7, RHEL 7,
CentOS 7, and Scientific Linux 7 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-2024-26602: Denial-of-service with repeated membarrier syscalls.

The kernel membarrier syscall can be computationally expensive to
perform. Without any form of rate-limiting a malicious user might
exploit this to deny other processess access to CPU resources.


* CVE-2024-1086: Privilege escalation in netfilter subsystem.

Missing check on user input in netfilter subsystem could lead to a
double free. A local attacker could use this flaw to cause a denial-
of-service or escalate privilege.


* CVE-2023-45871: Denial-of-service in Intel(R) 82575/82576 PCI-Express Gigabit Ethernet driver.

An error when allocating memory to handle received frames in Intel(R)
82575/82576 PCI-Express Gigabit Ethernet driver could lead to a buffer
overflow. A remote attacker could use this flaw to cause a denial-of-
service.


* CVE-2023-4921: Use-after-free in QFQ packet scheduler.

The Quick Fair Queueing packet scheduling algorithm did not properly handle
network packets in some situations, leading to a use-after-free. A local
user could use this flaw to cause a denial-of-service or potentially
execute arbitrary code.


* CVE-2022-42896: Use-after-free in Bluetooth L2CAP.

A flaw in Bluetooth L2CAP protocol when accepting incoming connection
requests could lead to a use-after-free. A remote attacker could use
this flaw for a denial-of-service or for privilege escalation.


* CVE-2023-38409: Denial-of-service in the Framebuffer Console driver.

An incorrect array handling in the Framebuffer Console driver in the
Linux kernel could lead to a memory corruption flaw. A local attacker
may use this flaw to cause denial of service.

SUPPORT

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