CVE-2017-15597: Buffer Overflow
First published: Mon Oct 30 2017(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/xen | 4.11.4+107-gef32c7afa2-1 4.14.6-1 4.14.5+94-ge49571868d-1 4.17.1+2-gb773c48e36-1 4.17.2+55-g0b56bed864-1 | |
| Xen xen-unstable | <=4.9.0 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2017/10/24/3
- http://www.securityfocus.com/bid/101564
- http://www.securitytracker.com/id/1039653
- http://xenbits.xen.org/xsa/advisory-236.html
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- https://support.citrix.com/article/CTX229057
- https://www.debian.org/security/2017/dsa-4050
- https://xenbits.xen.org/xsa/advisory-236.html
- https://security-tracker.debian.org/tracker/CVE-2017-15597
Frequently Asked Questions
What is the severity of CVE-2017-15597?
CVE-2017-15597 has been rated as a medium severity vulnerability.
How do I fix CVE-2017-15597?
To fix CVE-2017-15597, upgrade to Xen versions 4.11.4+107-gef32c7afa2-1, 4.14.6-1, 4.14.5+94-ge49571868d-1, 4.17.1+2-gb773c48e36-1, or 4.17.2+55-g0b56bed864-1.
What versions of Xen are affected by CVE-2017-15597?
CVE-2017-15597 affects Xen versions up to and including 4.9.0.
What types of systems are vulnerable to CVE-2017-15597?
CVE-2017-15597 affects systems running vulnerable versions of Xen hypervisor.
Is there a workaround for CVE-2017-15597?
There are currently no known workarounds for CVE-2017-15597, and upgrading is recommended.
- collector/security-tracker-debian
- agent/weakness
- agent/type
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/event
- agent/author
- agent/description
- agent/remedy
- agent/severity
- agent/references
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/xen
- canonical/xen xen-unstable
- version/xen xen-unstable/4.9.0