Description
An issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S does not properly maintain RBX, which allows local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges.
Published: 2018-07-28
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1531-1 linux-4.9 security update
Debian DSA Debian DSA DSA-4308-1 linux security update
EUVD EUVD EUVD-2018-6572 An issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S does not properly maintain RBX, which allows local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges.
Ubuntu USN Ubuntu USN USN-3931-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3931-2 Linux kernel (HWE) vulnerabilities
History

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Canonical Ubuntu Linux
Debian Debian Linux
Linux Linux Kernel
Xen Xen
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T09:38:13.045Z

Reserved: 2018-07-28T00:00:00.000Z

Link: CVE-2018-14678

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-07-28T18:29:00.243

Modified: 2024-11-21T03:49:34.110

Link: CVE-2018-14678

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-07-25T00:00:00Z

Links: CVE-2018-14678 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses