Executive Summary

Informations
Name CVE-2017-12855 First vendor Publication 2017-08-15
Vendor Cve Last vendor Modification 2017-11-15

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 4 Temporal Score 6.5
Exploitabality Sub Score 2
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:N/A:N)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Xen maintains the _GTF_{read,writ}ing bits as appropriate, to inform the guest that a grant is in use. A guest is expected not to modify the grant details while it is in use, whereas the guest is free to modify/reuse the grant entry when it is not in use. Under some circumstances, Xen will clear the status bits too early, incorrectly informing the guest that the grant is no longer in use. A guest may prematurely believe that a granted frame is safely private again, and reuse it in a way which contains sensitive information, while the domain on the far end of the grant is still using the grant. Xen 4.9, 4.8, 4.7, 4.6, and 4.5 are affected.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12855

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-200 Information Exposure

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 18

Nessus® Vulnerability Scanner

Date Description
2017-11-17 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-2327-2.nasl - Type : ACT_GATHER_INFO
2017-10-13 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2017-0153.nasl - Type : ACT_GATHER_INFO
2017-10-12 Name : The remote Debian host is missing a security update.
File : debian_DLA-1132.nasl - Type : ACT_GATHER_INFO
2017-09-22 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-2541-1.nasl - Type : ACT_GATHER_INFO
2017-09-20 Name : The remote Fedora host is missing a security update.
File : fedora_2017-ed735463e3.nasl - Type : ACT_GATHER_INFO
2017-09-14 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-2450-1.nasl - Type : ACT_GATHER_INFO
2017-09-13 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3969.nasl - Type : ACT_GATHER_INFO
2017-09-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-1023.nasl - Type : ACT_GATHER_INFO
2017-09-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-1022.nasl - Type : ACT_GATHER_INFO
2017-09-05 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-2339-1.nasl - Type : ACT_GATHER_INFO
2017-09-05 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-2327-1.nasl - Type : ACT_GATHER_INFO
2017-09-05 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-2326-1.nasl - Type : ACT_GATHER_INFO
2017-09-01 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2017-0149.nasl - Type : ACT_GATHER_INFO
2017-09-01 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2017-0148.nasl - Type : ACT_GATHER_INFO
2017-08-23 Name : The remote Fedora host is missing a security update.
File : fedora_2017-f336ba205d.nasl - Type : ACT_GATHER_INFO
2017-08-18 Name : The remote Xen hypervisor installation is missing a security update.
File : xen_server_XSA-230.nasl - Type : ACT_GATHER_INFO
2017-08-16 Name : A server virtualization platform installed on the remote host is affected by ...
File : citrix_xenserver_CTX225941.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/100341
CONFIRM http://xenbits.xen.org/xsa/advisory-230.html
https://support.citrix.com/article/CTX225941
DEBIAN http://www.debian.org/security/2017/dsa-3969
SECTRACK http://www.securitytracker.com/id/1039177

Alert History

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Date Informations
2021-05-04 12:56:30
  • Multiple Updates
2021-04-22 02:09:08
  • Multiple Updates
2020-05-23 00:55:39
  • Multiple Updates
2017-11-18 13:24:06
  • Multiple Updates
2017-11-15 09:23:55
  • Multiple Updates
2017-11-04 09:23:48
  • Multiple Updates
2017-10-14 13:25:00
  • Multiple Updates
2017-10-13 13:25:48
  • Multiple Updates
2017-09-23 13:22:31
  • Multiple Updates
2017-09-21 13:25:07
  • Multiple Updates
2017-09-15 13:25:01
  • Multiple Updates
2017-09-14 13:24:55
  • Multiple Updates
2017-09-06 13:25:19
  • Multiple Updates
2017-09-02 13:25:16
  • Multiple Updates
2017-08-25 17:22:07
  • Multiple Updates
2017-08-24 13:25:06
  • Multiple Updates
2017-08-19 13:24:47
  • Multiple Updates
2017-08-18 09:23:29
  • Multiple Updates
2017-08-17 13:24:26
  • Multiple Updates
2017-08-17 09:23:37
  • Multiple Updates
2017-08-15 21:23:43
  • First insertion