SB2020073007 - Amazon Linux AMI update for qemu-kvm

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Main Vulnerability Database SB2020073007

SB2020073007 - Amazon Linux AMI update for qemu-kvm

Published: July 30, 2020

Security Bulletin ID SB2020073007
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Memory leak (CVE-ID: CVE-2019-9824)

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

The vulnerability exists due memory leak within the SLiRP networking implementation. A local user can read uninitialised stack memory contents.


2) Heap-based buffer overflow (CVE-ID: CVE-2020-7039)

The vulnerability allows an attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the tcp_emu() function in tcp_subr.c in libslirp. An attacker can issue specially crafted IRC DCC commands in EMU_IRC, trigger heap-based buffer overflow and execute arbitrary code on the target system.


3) Buffer overflow (CVE-ID: CVE-2020-8608)

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

The vulnerability exists due to a boundary error within tcp_subr.c file in libslirp. A local user can pass specially crafted data to the application that is using the affected version of library, trigger memory corruption and execute arbitrary code on the system.


Remediation

Install update from vendor's website.

References