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CVE-2021-29627
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
In FreeBSD 13.0-STABLE before n245050, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 12.2-RELEASE before p6, listening socket accept filters implementing the accf_create callback incorrectly freed a process supplied argument string. Additional operations on the socket can lead to a double free or use after free..
CVSSv2.0 Score
- Severity
- High
- Base Score
- 7.2/10
- Exploit Score
- 3.9/10
- Access Vector
- Local
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 10/10
- Confidentiality Impact
- Complete
- Availability Impact
- Complete
- Integrity Impact
- Complete
CVSSv3.1 Score
- Severity
- High
- Base Score
- 7.8/10
- Exploit Score
- 1.8/10
- Access Vector
- Local
- Access Complexity
- Low
- Privileges Required
- Low
- Impact Score
- 5.9/10
- Confidentiality Impact
- High
- Availability Impact
- High
- Integrity Impact
- High
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
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:13.0:rc1:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:freebsd:freebsd:13.0:rc2:*:*:*:*:*:* |
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 |