CVE-2021-3715
CVSS V2 High 7.2
CVSS V3 High 7.8
Description
A flaw was found in the "Routing decision" classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition. This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Overview
- CVE ID
- CVE-2021-3715
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-02T23:15:08
- Last Modified Date
- 2023-01-24T15:07:31
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.10 |
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://bugzilla.redhat.com/show_bug.cgi?id=1993988 | Issue Tracking Patch Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2021/09/07/1 | Mailing List Patch Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef299cc3fa1a9e1288665a9fdc8bff55629fd359 | Mailing List Patch Vendor Advisory |
| https://github.com/torvalds/linux/commit/ef299cc3fa1a9e1288665a9fdc8bff55629fd359 | Patch Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-3715 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3715 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:46:19 | Added to TrackCVE | |||
| 2022-12-06 11:11:33 | 2022-03-02T23:15Z | 2022-03-02T23:15:08 | CVE Published Date | updated |
| 2022-12-06 11:11:33 | 2022-09-30T14:46:36 | CVE Modified Date | updated | |
| 2022-12-06 11:11:33 | Undergoing Analysis | Vulnerability Status | updated | |
| 2023-01-24 19:12:23 | 2023-01-24T15:07:31 | CVE Modified Date | updated | |
| 2023-01-24 19:12:23 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |