Detections
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Alpine: xen: security update to 4.6.3-r3

medium Tenable Cloud Security Plugin ID 407860

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users
 to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by
 modifying an instruction while the hypervisor is preparing to emulate it. (CVE-2016-7777)

See Also

https://security.alpinelinux.org/vuln/CVE-2016-7777

Plugin Details

Severity: Medium

ID: 407860

Version: Revision 1.25

Type: Local

Published: 10/31/2023

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.04

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2016-7777

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/4/2016

Reference Information

CVE: CVE-2016-7777

BID: 93344

IAVB: 2016-B-0149-S