CVE-2021-29626
CVSS V2 Low 2.1
CVSS V3 Medium 5.5
Description
In FreeBSD 13.0-STABLE before n245117, 12.2-STABLE before r369551, 11.4-STABLE before r369559, 13.0-RC5 before p1, 12.2-RELEASE before p6, and 11.4-RELEASE before p9, copy-on-write logic failed to invalidate shared memory page mappings between multiple processes allowing an unprivileged process to maintain a mapping after it is freed, allowing the process to read private data belonging to other processes or the kernel.
Overview
- CVE ID
- CVE-2021-29626
- Assigner
- secteam@freebsd.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-04-07T15:15:13
- Last Modified Date
- 2022-05-27T13:22:42
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* | 1 | OR | 11.4 | |
| cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* | 1 | OR | 12.0 | 12.2 |
| cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:11.4:beta1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:11.4:p4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:11.4:p5:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:11.4:rc1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:11.4:rc2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:12.2:p1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:12.2:p2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:13.0:beta1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:13.0:beta2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:13.0:beta3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:13.0:beta4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:13.0:rc1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:13.0:rc2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:13.0:rc3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:13.0:rc4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:freebsd:freebsd:13.0:rc5:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://security.FreeBSD.org/advisories/FreeBSD-SA-21:08.vm.asc | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20210423-0008/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-29626 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29626 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:14:38 | Added to TrackCVE | |||
| 2022-12-06 01:22:51 | 2021-04-07T15:15Z | 2021-04-07T15:15:13 | CVE Published Date | updated |
| 2022-12-06 01:22:51 | 2022-05-27T13:22:42 | CVE Modified Date | updated | |
| 2022-12-06 01:22:51 | Analyzed | Vulnerability Status | updated |