CVE-2016-8630
CVSS V2 Medium 4.9
CVSS V3 Medium 5.5
Description
The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction.
Overview
- CVE ID
- CVE-2016-8630
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2016-11-28T03:59:03
- Last Modified Date
- 2023-02-12T23:26:11
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 4.8.6 |
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:U/C:N/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092f52d7e61dd1557f2db2400ddb430e85937e | Issue Tracking Patch Vendor Advisory |
| http://rhn.redhat.com/errata/RHSA-2017-0386.html | |
| http://rhn.redhat.com/errata/RHSA-2017-0387.html | |
| http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7 | Release Notes |
| http://www.openwall.com/lists/oss-security/2016/11/22/3 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/94459 | |
| https://access.redhat.com/errata/RHSA-2017:0386 | |
| https://access.redhat.com/errata/RHSA-2017:0387 | |
| https://access.redhat.com/security/cve/CVE-2016-8630 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1393350 | Issue Tracking |
| https://github.com/torvalds/linux/commit/d9092f52d7e61dd1557f2db2400ddb430e85937e | Issue Tracking Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2016-8630 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8630 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 18:51:53 | Added to TrackCVE | |||
| 2022-12-02 12:12:14 | 2016-11-28T03:59Z | 2016-11-28T03:59:03 | CVE Published Date | updated |
| 2022-12-02 12:12:14 | 2018-01-05T02:31:18 | CVE Modified Date | updated | |
| 2022-12-02 12:12:14 | Modified | Vulnerability Status | updated | |
| 2023-02-02 17:05:45 | 2023-02-02T16:17:41 | CVE Modified Date | updated | |
| 2023-02-02 17:05:46 | The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction. | Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support is vulnerable to a null pointer dereference flaw. It could occur on x86 platform, when emulating an undefined instruction. An attacker could use this flaw to crash the host kernel resulting in DoS. | Description | updated |
| 2023-02-02 17:05:47 | References | updated | ||
| 2023-02-13 01:06:49 | 2023-02-12T23:26:11 | CVE Modified Date | updated | |
| 2023-02-13 01:06:49 | Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support is vulnerable to a null pointer dereference flaw. It could occur on x86 platform, when emulating an undefined instruction. An attacker could use this flaw to crash the host kernel resulting in DoS. | The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction. | Description | updated |