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CVE-2017-7518

CVSS v3.0 7.8 (High)
78% Progress
CVSS v2.0 4.6 (Medium)
46% Progress
EPSS 0.06 % (28th)
0.06% Progress
Affected Products 9
Advisories 12
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack. A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this.

Weaknesses
CWE-250
Execution with Unnecessary Privileges
CWE-755
Improper Handling of Exceptional Conditions
CVE Status
PUBLISHED
CNA
Red Hat, Inc.
Published Date
2018-07-30 15:29:00
(6 years ago)
Updated Date
2023-11-07 02:50:11
(10 months ago)

Affected Products

Canonical

Debian

Linux

Redhat

Configuration #1

    CPE23 From Up To
  Redhat Enterprise Linux 7.0 cpe:2.3:o:redhat:enterprise_linux:7.0
  Redhat Enterprise Linux Desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0
  Redhat Enterprise Linux Server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0
  Redhat Enterprise Linux Server Aus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4
  Redhat Enterprise Linux Server Eus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4
  Redhat Enterprise Linux Server Eus 7.5 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5
  Redhat Enterprise Linux Workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0

Configuration #2

    CPE23 From Up To
  Canonical Ubuntu Linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts
  Canonical Ubuntu Linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts
  Debian Linux 8.0 cpe:2.3:o:debian:debian_linux:8.0
  Debian Linux 9.0 cpe:2.3:o:debian:debian_linux:9.0

Configuration #3

    CPE23 From Up To
  Linux Kernel prior 4.12 version cpe:2.3:o:linux:linux_kernel < 4.12