What is CVE-2018-1087?

CVE-2018-1087 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2018-1087 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-1087?

CVE-2018-1087 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-2018-1087?

No patch is currently available for CVE-2018-1087. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2018-1087 actively exploited?

CVE-2018-1087 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2018-1087

High

kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.

Package Linux Kernel

Published 2018-05-15

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-2018-1087 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-2018-1087 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Openwall
http://www.openwall.com/lists/oss-security/2018/05/08/5

Mailing List
Securityfocus
http://www.securityfocus.com/bid/104127

Third Party Advisory VDB Entry
Securitytracker
http://www.securitytracker.com/id/1040862

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2018:1318

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1345

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1347

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1348

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1355

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1524

Third Party Advisory
Red Hat
https://access.redhat.com/security/vulnerabilities/pop_ss

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087

Issue Tracking
Ubuntu Security
https://usn.ubuntu.com/3641-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3641-2/

Third Party Advisory
Debian Security
https://www.debian.org/security/2018/dsa-4196

Third Party Advisory

Details

CVE ID CVE-2018-1087

Severity High

CVSS score 7.8 / 10

CVSS version 3.0

Published 2018-05-15

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-1087?

CVE-2018-1087 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2018-1087 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-1087?

CVE-2018-1087 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-2018-1087?

No patch is currently available for CVE-2018-1087. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2018-1087 actively exploited?

No — CVE-2018-1087 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.