SB2023101179 - Local information disclosure in Linux kernel Netfilter

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Main Vulnerability Database SB2023101179

SB2023101179 - Local information disclosure in Linux kernel Netfilter

Published: October 11, 2023 Updated: October 11, 2023

Security Bulletin ID SB2023101179
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2023-39193)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the sctp_mt_check() function in Netfilter subsystem in Linux kernel. A local user with CAP_NET_ADMIN capability can trigger an out-of-bounds read error and read contents of memory on the system.


2) Out-of-bounds read (CVE-ID: CVE-2023-39192)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a boundary condition within the the u32_match_it() function in Netfilter subsystem in Linux kernel. A local user can trigger an out-of-bounds read error and gain access to sensitive information.


Remediation

Install update from vendor's website.

References