CVE-2018-14678

 

Published at: - 28-07-2018 08:29

Last modified: - 26-10-2022 01:44

Total changes: - 3

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.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://xenbits.xen.org/xsa/advisory-274.html
• 1041397-Third Party Advisory, VDB Entry
• 104924-Third Party Advisory, VDB Entry
• DSA-4308-Third Party Advisory
• [debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security update-Mailing List, Third Party Advisory
• USN-3931-2-
• USN-3931-1-

 

Keywords

NVD

 

CVE-2018-14678

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures