SB2017030726 - Integer overflow in OpenBSD
Published: March 7, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017030726
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer overflow (CVE-ID: CVE-2016-6522)
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
Integer overflow in the uvm_map_isavail function in uvm/uvm_map.c in OpenBSD 5.9 allows local users to cause a denial of service (kernel panic) via a crafted mmap call, which triggers the new mapping to overlap with an existing mapping.
Remediation
Install update from vendor's website.