PT-2017-1981 · Linux+2 · Linux Kernel+2

Minoura · Published 2014-01-23 · Updated 2017-11-02 · CVE-2017-8106

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions 3.12 through 3.15

Description The issue is related to the handle invept function in the Linux kernel, which can cause a denial of service due to a NULL pointer dereference and host OS crash. This can be triggered by a privileged KVM guest OS user using a single-context INVEPT instruction with a NULL EPT pointer. The exploitation of this issue may allow an attacker to cause a denial of service.

Recommendations For Linux kernel versions 3.12 through 3.15, consider disabling the handle invept function as a temporary workaround until a patch is available. Restrict access to the KVM guest OS to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2014-1079

ALT-PU-2014-2064

BDU:2017-01145

CVE-2017-8106

SUSE-SU-2017:1360-1

SUSE-SU-2017:2920-1

Affected Products

Alt Linux

Linux Kernel

Suse

References · 230

• https://bdu.fstec.ru/vul/2017-01145 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-8106 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-8106 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-8106 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2017:1360-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-8106 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-8106 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2017-8106 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:2920-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-8106 · Vendor Advisory
• https://bugzilla.suse.com/1036752 · Note
• https://bugzilla.suse.com/1033336 · Note
• https://bugzilla.suse.com/1030593 · Note
• https://suse.com/security/cve/CVE-2017-1000363 · Note
• https://bugzilla.suse.com/1049882 · Note