CVE-2017-2596
CVSS V2 Medium 4.9
CVSS V3 Medium 6.5
Description
The nested_vmx_check_vmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS users to cause a denial of service (host OS memory consumption) by leveraging the mishandling of page references.
Overview
- CVE ID
- CVE-2017-2596
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2017-02-06T06:59:00
- Last Modified Date
- 2023-02-12T23:29:04
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 4.9.8 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:N/I:N/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 4.9
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| http://www.debian.org/security/2017/dsa-3791 | |
| http://www.openwall.com/lists/oss-security/2017/01/31/4 | Mailing List Patch Third Party Advisory |
| http://www.securityfocus.com/bid/95878 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2017:1842 | |
| https://access.redhat.com/errata/RHSA-2017:2077 | |
| https://access.redhat.com/security/cve/CVE-2017-2596 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1417812 | Issue Tracking Patch |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-2596 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2596 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:25:01 | Added to TrackCVE | |||
| 2022-12-02 13:39:29 | 2017-02-06T06:59Z | 2017-02-06T06:59:00 | CVE Published Date | updated |
| 2022-12-02 13:39:29 | 2019-10-03T00:03:26 | CVE Modified Date | updated | |
| 2022-12-02 13:39:29 | Modified | Vulnerability Status | updated | |
| 2023-02-02 22:06:34 | 2023-02-02T21:17:39 | CVE Modified Date | updated | |
| 2023-02-02 22:06:34 | The nested_vmx_check_vmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS users to cause a denial of service (host OS memory consumption) by leveraging the mishandling of page references. | Linux kernel built with the KVM visualization support (CONFIG_KVM), with nested visualization(nVMX) feature enabled(nested=1), is vulnerable to host memory leakage issue. It could occur while emulating VMXON instruction in 'handle_vmon'. An L1 guest user could use this flaw to leak host memory potentially resulting in DoS. | Description | updated |
| 2023-02-02 22:06:35 | References | updated | ||
| 2023-02-13 00:06:06 | 2023-02-12T23:29:04 | CVE Modified Date | updated | |
| 2023-02-13 00:06:06 | Linux kernel built with the KVM visualization support (CONFIG_KVM), with nested visualization(nVMX) feature enabled(nested=1), is vulnerable to host memory leakage issue. It could occur while emulating VMXON instruction in 'handle_vmon'. An L1 guest user could use this flaw to leak host memory potentially resulting in DoS. | The nested_vmx_check_vmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS users to cause a denial of service (host OS memory consumption) by leveraging the mishandling of page references. | Description | updated |