SB2019072615 - Buffer overflow in Linux kernel
Published: July 26, 2019 Updated: July 31, 2019
Security Bulletin ID
SB2019072615
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2018-20855)
The vulnerability allows a local attacker to access sensitive information on a targeted system.
The vulnerability exists due to insufficient initialization of the "mlx5_ib_create_qp_resp" function in the "create_qp_common" function in the "drivers/infiniband/hw/mlx5/qp.c" file. A local authenticated attacker can access the system, execute an application that submits malicious input, leak stack memory and access sensitive information on a targeted system.
Remediation
Install update from vendor's website.