What is CVE-2017-7518?

CVE-2017-7518 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2017-7518 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-7518?

CVE-2017-7518 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-7518?

No patch is currently available for CVE-2017-7518. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-7518 actively exploited?

CVE-2017-7518 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2017-7518

High

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.

Package Linux Kernel

Published 2018-07-30

Last modified 2024-11-21

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-250

CVE-2017-7518 is classified as CWE-250

See CWE-250 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2017-7518 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityfocus
http://www.securityfocus.com/bid/99263

Third Party Advisory VDB Entry
Securitytracker
http://www.securitytracker.com/id/1038782

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/articles/3290921

Permissions Required Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:0395

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:0412

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3619-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3619-2/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3754-1/

Third Party Advisory
Debian Security
https://www.debian.org/security/2017/dsa-3981

Third Party Advisory
Kernel patch commit
http://www.openwall.com/lists/oss-security/2017/06/23/5
Patch
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7518
Patch
Kernel patch commit
https://www.spinics.net/lists/kvm/msg151817.html
Patch

Details

CVE ID CVE-2017-7518

Severity High

CVSS score 7.8 / 10

CVSS version 3.0

Published 2018-07-30

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-7518?

CVE-2017-7518 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2017-7518 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-7518?

CVE-2017-7518 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-7518?

No patch is currently available for CVE-2017-7518. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-7518 actively exploited?

No — CVE-2017-7518 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.