SB2018083001 - Denial of service vulnerabilities in OpenBSD

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Main Vulnerability Database SB2018083001

SB2018083001 - Denial of service vulnerabilities in OpenBSD

Published: August 30, 2018

Security Bulletin ID SB2018083001
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Improper access control (CVE-ID: CVE-2018-14775)

The vulnerability allows a local attacker to cause DoS condition on the target system.

The vulnerability exists due to access control flaw in tss_alloc() in 'sys/arch/i386/i386/gdt.c'. A local attacker can run a specially crafted application and cause the system to crash.


2) Improper input validation (CVE-ID: N/A)

The vulnerability allows a local attacker to cause DoS condition on the target system.

The vulnerability exists due to a flaw in elf_load_file() in OpenBSD Kernel. A local attacker can execute a specially crafted ELF binary and cause a kernel panic.


Remediation

Install update from vendor's website.

References