SB20240711237 - Red Hat Enterprise Linux 9 update for kernel-rt

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Main Vulnerability Database SB20240711237

SB20240711237 - Red Hat Enterprise Linux 9 update for kernel-rt

Published: July 11, 2024

Security Bulletin ID SB20240711237
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2024-0193)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the netfilter subsystem of the Linux kernel. A local user with CAP_NET_ADMIN capability can escalate privileges on the system.


2) Buffer overflow (CVE-ID: CVE-2023-52434)

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the smb2_parse_contexts() function when parsing SMB packets. A remote user can send specially crafted SMB traffic to the affected system, trigger memory corruption and execute arbitrary code.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


3) Input validation error (CVE-ID: CVE-2024-26673)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the nft_ct_expect_obj_init() function in net/netfilter/nft_ct.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References