CVE-2018-15471
CVSS V2 Medium 6.8
CVSS V3 High 7.8
Description
An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks.
Overview
- CVE ID
- CVE-2018-15471
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2018-08-17T18:29:01
- Last Modified Date
- 2020-08-24T17:37:01
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | 1 | OR | 4.11.0 | |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 4.18.1 | |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:S/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 3.1
- Impact Score
- 10
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://bugs.chromium.org/p/project-zero/issues/detail?id=1607 | Third Party Advisory |
| http://xenbits.xen.org/xsa/advisory-270.html | Vendor Advisory |
| https://www.debian.org/security/2018/dsa-4313 | Third Party Advisory |
| https://usn.ubuntu.com/3820-3/ | Third Party Advisory |
| https://usn.ubuntu.com/3820-2/ | Third Party Advisory |
| https://usn.ubuntu.com/3820-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3819-1/ | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-15471 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15471 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:30:02 | Added to TrackCVE | |||
| 2022-12-03 11:16:30 | 2018-08-17T18:29Z | 2018-08-17T18:29:01 | CVE Published Date | updated |
| 2022-12-03 11:16:30 | 2020-08-24T17:37:01 | CVE Modified Date | updated | |
| 2022-12-03 11:16:30 | Modified | Vulnerability Status | updated |