CVE-2021-4028
CVSS V2 None
CVSS V3 High 7.8
Description
A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.
Overview
- CVE ID
- CVE-2021-4028
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-08-24T16:15:09
- Last Modified Date
- 2023-02-10T16:18:15
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.1.15 | |
| cpe:2.3:o:suse:linux_enterprise:15.0:sp3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:suse:linux_enterprise:15.0:sp4:*:*:*:*:*:* | 1 | OR |
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://access.redhat.com/security/cve/CVE-2021-4028 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2027201 | Issue Tracking Third Party Advisory |
| https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0 | Issue Tracking Patch Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74 | Mailing List Patch Vendor Advisory |
| https://lkml.org/lkml/2021/10/4/697 | Mailing List Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20221228-0002/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-4028 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4028 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-08-24 17:00:13 | Added to TrackCVE | |||
| 2022-12-28 16:16:11 | 2022-12-28T16:15:09 | CVE Modified Date | updated | |
| 2022-12-28 16:16:11 | References | updated | ||
| 2023-02-11 03:16:11 | 2023-02-10T16:18:15 | CVE Modified Date | updated | |
| 2023-02-11 03:16:11 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |