SB2018010539 - Denial of service in xen (Alpine package)
Published: January 5, 2018
Security Bulletin ID
SB2018010539
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Denial of service (CVE-ID: CVE-2017-15596)
CWE-ID: CWE-789 - Uncontrolled Memory Allocation
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker on guest system to cause DoS condition on the host system.
The weakness exists due to improper memory allocation. A local attacker can trigger a flaw in the add-to-physmap function, prevent use of a physical CPU and cause the application on the host system to crash.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Install update from vendor's website.