SB2017120209 - OpenSUSE Linux update for xen
Published: December 2, 2017
Security Bulletin ID
SB2017120209
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2017-15289)
The vulnerability allows an adjacent authenticated attacker to cause DoS condition on the target system.The weakness exists in the mode4and5 write functions in hw/display/cirrus_vga.c due to out-of-bounds write. An adjacent attacker can trigger memory corruption and cause the service to crash via vectors related to dst calculation.
2) Race condition (CVE-ID: CVE-2017-15597)
The vulnerability allows an adjacent administrative attacker to cause DoS condition on the target system.The weakness exists due to a race condition in certain grant copy operations. A local attacker can trigger a memory corruption error in the hypervisor and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Install update from vendor's website.