CVE-2020-15852
CVSS V2 Medium 4.6
CVSS V3 High 7.8
Description
An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.
Overview
- CVE ID
- CVE-2020-15852
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-07-20T19:15:11
- Last Modified Date
- 2022-12-03T14:32:06
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.5 | 5.7.9 |
| cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:* | 1 | OR | 4.13.1 | |
| cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 4.6
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/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://github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2 | Patch Third Party Advisory |
| http://xenbits.xen.org/xsa/advisory-329.html | Patch Third Party Advisory |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cadfad870154e14f745ec845708bc17d166065f2 | Mailing List Patch Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2020/07/21/2 | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20200810-0001/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-15852 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15852 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:24:32 | Added to TrackCVE | |||
| 2022-12-04 20:04:22 | 2020-07-20T19:15Z | 2020-07-20T19:15:11 | CVE Published Date | updated |
| 2022-12-04 20:04:22 | 2022-12-03T14:32:06 | CVE Modified Date | updated | |
| 2022-12-04 20:04:22 | Analyzed | Vulnerability Status | updated |