CVE-2020-25220
CVSS V2 High 7.2
CVSS V3 High 7.8
Description
The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd->no_refcnt was not considered during a backport of a CVE-2020-14356 patch. This is related to the cgroups feature.
Overview
- CVE ID
- CVE-2020-25220
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-09-10T02:15:11
- Last Modified Date
- 2021-01-20T14:25:46
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 4.9.0 | 4.9.233 |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 4.14 | 4.14.194 |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 4.19 | 4.19.140 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
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://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.194 | Release Notes Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1868453 | Issue Tracking Patch Third Party Advisory |
| https://www.spinics.net/lists/stable/msg405099.html | Mailing List Patch Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.233 | Release Notes Vendor Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.140 | Release Notes Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.14.y&id=82fd2138a5ffd7e0d4320cdb669e115ee976a26e | Issue Tracking Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20201001-0004/ | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-25220 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25220 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:26:49 | Added to TrackCVE | |||
| 2022-12-04 22:18:35 | 2020-09-10T02:15Z | 2020-09-10T02:15:11 | CVE Published Date | updated |
| 2022-12-04 22:18:35 | 2021-01-20T14:25:46 | CVE Modified Date | updated | |
| 2022-12-04 22:18:35 | Analyzed | Vulnerability Status | updated |