Vulnerability Monitor

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CVE-2017-15597

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.

Published

2017-10-30T14:29:00.847

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 9.1 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.0

Impact Score

10.0

Weaknesses

Type: Primary
CWE-119
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	xen	xen	≤ 4.9.0	Yes

References

http://www.openwall.com/lists/oss-security/2017/10/24/3 Issue Tracking, Mailing List, Mitigation, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/101564 Issue Tracking, Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1039653 Issue Tracking, Third Party Advisory, VDB Entry ([email protected])
http://xenbits.xen.org/xsa/advisory-236.html Issue Tracking, Patch, Vendor Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html ([email protected])
https://support.citrix.com/article/CTX229057 Issue Tracking, Third Party Advisory ([email protected])
https://www.debian.org/security/2017/dsa-4050 ([email protected])
http://www.openwall.com/lists/oss-security/2017/10/24/3 Issue Tracking, Mailing List, Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/101564 Issue Tracking, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1039653 Issue Tracking, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://xenbits.xen.org/xsa/advisory-236.html Issue Tracking, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html (af854a3a-2127-422b-91ae-364da2661108)
https://support.citrix.com/article/CTX229057 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2017/dsa-4050 (af854a3a-2127-422b-91ae-364da2661108)