Home/CVE/An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gai
CVE

CVE-2017-17563

An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gai

An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.

HIGH · CVSS 7.8 EPSS 0.00064
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

1
xen<= 4.9.1
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Dec 2017 · 11:29 PM
CVSS VectorCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
⚑

Vendor Advisories

6
suse-csafSUSE-SU-2018:0678-1
suse-csafSUSE-SU-2018:0638-1
suse-csafSUSE-SU-2018:0601-1
suse-csafSUSE-SU-2018:0609-1
suse-csafSUSE-SU-2018:0472-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2017/12/12/2Mailing List
http://www.securityfocus.com/bid/102169
http://www.securitytracker.com/id/1040769
https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
https://security.gentoo.org/glsa/201801-14
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