Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | >= 12.0, < 12.2 |
Related Weaknesses (CWE)
References
- https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.ascVendor Advisory
- https://security.netapp.com/advisory/ntap-20210423-0007/Third Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.ascVendor Advisory
- https://security.netapp.com/advisory/ntap-20210423-0007/Third Party Advisory
FAQ
What is CVE-2021-29627?
CVE-2021-29627 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 fre...
How severe is CVE-2021-29627?
CVE-2021-29627 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29627?
Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.