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CVE-2021-29627 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.asc | CVE | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20210423-0007/ | CVE | Third Party Advisory |
| https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.asc | [email protected] | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20210423-0007/ | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-415 | Double Free | [email protected] |
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| freebsd freebsd | >= 12.0, < 12.2 12.2 - 12.2 p1 12.2 p2 13.0 beta1 13.0 beta2 13.0 beta3 13.0 beta4 13.0 rc1 13.0 rc2 13.0 rc3 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| May 27, 2022 | Modified Analysis | [email protected] |
| Apr 23, 2021 | CVE Modified | [email protected] |
| Apr 16, 2021 | Initial Analysis | [email protected] |