CVE-2020-7457 — HIGH (8.1) — White Hats Nepal

Vulnerability Description

In FreeBSD 12.1-STABLE before r359565, 12.1-RELEASE before p7, 11.4-STABLE before r362975, 11.4-RELEASE before p1, and 11.3-RELEASE before p11, missing synchronization in the IPV6_2292PKTOPTIONS socket option set handler contained a race condition allowing a malicious application to modify memory after being freed, possibly resulting in code execution.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Freebsd	Freebsd	11.3

Related Weaknesses (CWE)

CWE-662 CWE-362 CWE-416

References

http://packetstormsecurity.com/files/158695/FreeBSD-ip6_setpktopt-Use-After-FreeExploitThird Party AdvisoryVDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:20.ipv6.ascPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20200724-0002/Third Party Advisory
http://packetstormsecurity.com/files/158695/FreeBSD-ip6_setpktopt-Use-After-FreeExploitThird Party AdvisoryVDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:20.ipv6.ascPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20200724-0002/Third Party Advisory

FAQ

What is CVE-2020-7457?

CVE-2020-7457 is a vulnerability with a CVSS score of 8.1 (HIGH). In FreeBSD 12.1-STABLE before r359565, 12.1-RELEASE before p7, 11.4-STABLE before r362975, 11.4-RELEASE before p1, and 11.3-RELEASE before p11, missing synchronization in the IPV6_2292PKTOPTIONS socke...

How severe is CVE-2020-7457?

CVE-2020-7457 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-7457?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.