CVE - CVE-2017-15597

CVE-ID
CVE-2017-15597	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
An issue was discovered in Xen through 4.9.x. Grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. Other portions of code, however, did not match up with that assumption. When such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. A malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a Denial of Service. Privilege escalation and information leaks cannot be ruled out.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20171024 Xen Security Advisory 236 (CVE-2017-15597) - pin count / page reference race in grant table code URL:http://www.openwall.com/lists/oss-security/2017/10/24/3 MLIST:[debian-lts-announce] 20181018 [SECURITY] [DLA 1549-1] xen security update URL:https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html CONFIRM:http://xenbits.xen.org/xsa/advisory-236.html CONFIRM:https://support.citrix.com/article/CTX229057 DEBIAN:DSA-4050 URL:https://www.debian.org/security/2017/dsa-4050 BID:101564 URL:http://www.securityfocus.com/bid/101564 SECTRACK:1039653 URL:http://www.securitytracker.com/id/1039653
Assigning CNA
MITRE Corporation
Date Entry Created
20171018	Disclaimer: The entry creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20171018)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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