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CVE-2021-29626
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
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..
CVSSv2.0 Score
- Severity
- Low
- Base Score
- 2.1/10
- Exploit Score
- 3.9/10
- Access Vector
- Local
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 2.9/10
- Confidentiality Impact
- Partial
- Availability Impact
- None
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 5.5/10
- Exploit Score
- 1.8/10
- Access Vector
- Local
- Access Complexity
- Low
- Privileges Required
- Low
- Impact Score
- 3.6/10
- Confidentiality Impact
- High
- Availability Impact
- None
- Integrity Impact
- None
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:o:freebsd:freebsd:11.4:beta1:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:11.4:rc2:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:11.4:rc1:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:12.2:p1:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:12.2:p2:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* |
Yes
|
- | 11.4 | |
cpe:2.3:o:freebsd:freebsd:11.4:p4:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:11.4:p5:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:rc5:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:rc1:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:rc2:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:rc4:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:beta1:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:beta2:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:beta3:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:beta4:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:rc3:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* |
Yes
|
12.0 | 12.2 |