SB2019110630 - Red Hat update for virt:rhel

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Main Vulnerability Database SB2019110630

SB2019110630 - Red Hat update for virt:rhel

Published: November 6, 2019

Security Bulletin ID SB2019110630
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
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) NULL pointer dereference (CVE-ID: CVE-2019-12155)

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

The vulnerability exists due to a NULL pointer dereference error in "hw/display/qxl.c". A remote attacker can perform a denial of service (DoS) attack.


2) Heap-based buffer overflow (CVE-ID: CVE-2019-9755)

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

The vulnerability exists due to a boundary error when executing the NTFS-3G driver with an overly long relative mount point path. A local usre can create directory structure with specially crafted names, trigger heap-based buffer overflow and execute arbitrary code on the target system with elevated privileges.



3) 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.


Remediation

Install update from vendor's website.

References