SB2018090637 - Denial of service in xen (Alpine package)
Published: September 6, 2018
Security Bulletin ID
SB2018090637
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Denial of service (CVE-ID: CVE-2018-15469)
The vulnerability allows an adjacent attacker to cause DoS condition on the target system.
The vulnerability exists due to improper implementation of version 2 of grant tables in the affected software, in the hypervisor or in Linux. An adjacent attacker can request version 2 grant tables, trigger a BUG() check and cause the service to crash.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=fa4aef12fe69b28f195024708e67ea7e48e9fca6
- https://git.alpinelinux.org/aports/commit/?id=8a2e635d73f2f09c768259b4730dcf3f55d0ed93
- https://git.alpinelinux.org/aports/commit/?id=ca1b59327d93bdc40e475877934ab83be23847f1
- https://git.alpinelinux.org/aports/commit/?id=74dce6e0451466b8eb5078660886cc226f9704f4