Vulnerability identifier: #VU6182

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
NetBSD
Operating systems & Components / Operating system

Vendor: NetBSD Foundation, Inc

Description
The vulnerability allows a local user to elevate privileges.

The vulnerability exists due to design error within Xen-amd64 port implementation. A local user can read and write data into several kernel pages.

Successful exploitation of the vulnerability may allow a local user to elevate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

NetBSD: 6.0 - 7.0.2

---

External links
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2017-003.txt.asc

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.