CVE-2017-2583

HIGH

Linux Kernel < 4.9.5 - Denial of Service or Privilege Escalation via MOV SS Instruction Emulation

Title source: llm
STIX 2.1

Description

The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5 improperly emulates a "MOV SS, NULL selector" instruction, which allows guest OS users to cause a denial of service (guest OS crash) or gain guest OS privileges via a crafted application.

References (10)

Core 10
Core References
Issue Tracking, Patch x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1414735
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/33ab91103b3415e12457e3104f0e4517ce12d0f3
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1615
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2017/01/19/2
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3754-1/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/95673
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1616
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2017/dsa-3791
Release Notes, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5

Scores

CVSS v3 8.4
EPSS 0.0058
EPSS Percentile 44.6%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (1)
linux/linux_kernel < 4.9.4
Published Feb 06, 2017
Tracked Since Feb 18, 2026