SB2018010532 - Race condition in xen (Alpine package)
Published: January 5, 2018
Security Bulletin ID
SB2018010532
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Race condition (CVE-ID: CVE-2017-15588)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows an adjacent attacker to gain elevated privileges on the target system.
The weakness exists due to page type release race. An adjacent attacker can supply a stale TLB entry, trigger race condition and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.