CVE-2020-7457

HIGH

FreeBSD ip6_setpktopt Use-After-Free Privilege Escalation

Title source: metasploit

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.

Exploits (1)

metasploit WORKING POC GREAT

by Andy Nguyen, bcoles · rubypoc

https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/freebsd/local/ip6_setpktopt_uaf_priv_esc.rb

View Code ZIP pw:eip

References (3)

[Patch, Vendor Advisory] https://security.FreeBSD.org/advisories/FreeBSD-SA-20:20.ipv6.asc

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20200724-0002/

[Exploit, Third Party Advisory, VDB Entry] http://packetstormsecurity.com/files/158695/FreeBSD-ip6_setpktopt-Use-After-Free-Privilege-Escalation.html

Scores

CVSS v3 8.1

EPSS 0.4458

EPSS Percentile 97.6%

Attack Vector NETWORK

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

Details

CWE

CWE-662 CWE-362 CWE-416

Status published

Products (3)

freebsd/freebsd 11.3 (11 CPE variants)

freebsd/freebsd 11.4 (3 CPE variants)

freebsd/freebsd 12.1 (7 CPE variants)

Published Jul 09, 2020

Tracked Since Feb 18, 2026