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.
References
Link Resource
http://www.securityfocus.com/bid/104924 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041397 Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3931-1/ Third Party Advisory
https://usn.ubuntu.com/3931-2/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4308 Third Party Advisory
https://xenbits.xen.org/xsa/advisory-274.html Mitigation Patch Vendor Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2018-07-28T18:00:00

Updated: 2019-04-03T00:06:10

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


Link: CVE-2018-14678

JSON object: View

cve-icon NVD Information

Status : Analyzed

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

Modified: 2023-02-24T18:35:08.140


Link: CVE-2018-14678

JSON object: View

cve-icon Redhat Information

No data.

CWE