SB2019111216 - Multiple vulnerabilities in Microsoft Windows kernel
Published: November 12, 2019
Security Bulletin ID
SB2019111216
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2019-1392)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when processing objects in memory within the Windows kernel. A local user can create a malicious application, launch it on the system and execute arbitrary code with SYSTEM privileges.
2) Resource management error (CVE-ID: CVE-2019-11135)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the TSX Asynchronous Abort (TAA) in Intel CPUs. The TAA condition, on some microprocessors utilizing speculative execution, may allow an authenticated user to potentially enable information disclosure via a side channel.Remediation
Install update from vendor's website.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1392
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-11135
- https://software.intel.com/security-software-guidance/insights/deep-dive-intel-transactional-synchronization-extensions-intel-tsx-asynchronous-abort