CVE-2021-28951
CVSS V2 Medium 4.9
CVSS V3 Medium 5.5
Description
An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25.
Overview
- CVE ID
- CVE-2021-28951
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-03-20T20:15:13
- Last Modified Date
- 2022-05-12T20:14:46
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.11.8 | |
| AND | ||||
| cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR | ||
| AND | ||||
| cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:netapp:a250:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:netapp:aff_500f_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:netapp:aff_500f:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:netapp:fas_500f_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:netapp:fas_500f:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* | 1 | OR | ||
| AND | ||||
| cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:N/I:N/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 4.9
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3ebba796fa251d042be42b929a2d916ee5c34a49 | Patch Vendor Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PTRNPQTZ4GVS46SZ4OBXY5YDOGVPSTGQ/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4VCKIOXCOZGXBEZMO5LGGV5MWCHO6FT3/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG/ | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210430-0003/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-28951 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28951 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-08 06:19:40 | Added to TrackCVE | |||
| 2022-12-06 00:07:18 | 2021-03-20T20:15Z | 2021-03-20T20:15:13 | CVE Published Date | updated |
| 2022-12-06 00:07:18 | 2022-05-12T20:14:46 | CVE Modified Date | updated | |
| 2022-12-06 00:07:18 | Analyzed | Vulnerability Status | updated |