SB2019073121 - Fedora 30 update for kernel, kernel-headers, kernel-tools



SB2019073121 - Fedora 30 update for kernel, kernel-headers, kernel-tools

Published: July 31, 2019 Updated: April 25, 2025

Security Bulletin ID SB2019073121
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) NULL pointer dereference (CVE-ID: CVE-2019-10207)

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

A flaw was found in the Linux kernel's Bluetooth implementation of UART, all versions kernel 3.x.x before 4.18.0 and kernel 5.x.x. An attacker with local access and write permissions to the Bluetooth hardware could use this flaw to issue a specially crafted ioctl function call and cause the system to crash.


2) Resource management error (CVE-ID: CVE-2019-13648)

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

The vulnerability exists in the "arch/powerpc/kernel/signal_32.c" and "arch/powerpc/kernel/signal_64.c" files on the PowerPC platform, when hardware transactional memory is disabled. A local authenticated attacker can make a "sigreturn()" system call that sends a signal frame that sends a signal frame that submits malicious input to the targeted system and cause a denial of service condition.


Remediation

Install update from vendor's website.