CVE-2021-4154
CVSS V2 High 7.2
CVSS V3 High 8.8
Description
A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.
Overview
- CVE ID
- CVE-2021-4154
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-02-04T23:15:12
- Last Modified Date
- 2023-01-19T15:53:48
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.14 | |
| cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h300e:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h300s:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h500e:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h700e:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:*:*:*:*:*:*:* | 1 | OR |
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:C/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2
- Impact Score
- 6
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2034514 | Issue Tracking Patch Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0462726e7ef281c35a7a4ae33e93ee2bc9975b | Mailing List Patch Vendor Advisory |
| https://cloud.google.com/anthos/clusters/docs/security-bulletins#gcp-2022-002 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220225-0004/ | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-4154 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4154 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:47:59 | Added to TrackCVE | |||
| 2022-12-06 08:38:04 | 2022-02-04T23:15Z | 2022-02-04T23:15:12 | CVE Published Date | updated |
| 2022-12-06 08:38:04 | 2022-03-01T15:54:28 | CVE Modified Date | updated | |
| 2022-12-06 08:38:04 | Undergoing Analysis | Vulnerability Status | updated | |
| 2023-01-19 16:13:22 | 2023-01-19T15:53:48 | CVE Modified Date | updated | |
| 2023-01-19 16:13:22 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |