Security restrictions bypass in Xen - CVE-2018-12892

 

Security restrictions bypass in Xen - CVE-2018-12892

Published: June 29, 2018


Vulnerability identifier: #VU13522
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H/E:U/U:Clear
CVE-ID: CVE-2018-12892
CWE-ID: CWE-264
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vendor: Xen Project
Affected software:
Xen

Detailed vulnerability description

The vulnerability allows an adjacent attacker with administrative privileges to bypass security restrictions on the target system.

The vulnerability exists on x86 systems due to a flaw in libxl. An adjacent attacker can bypass the read-only restrictions on a SCSI disk image in certain cases.


How to mitigate CVE-2018-12892

Install update from vendor's website.

Sources