CVE-2020-7457

Public Exploit

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 64.62% Top 5%
Vendor Advisory FreeBSD.org
Affected: n/a FreeBSD
Published at:
Updated at:

References

Link Tags
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:20.ipv6.asc patch vendor advisory
https://security.netapp.com/advisory/ntap-20200724-0002/ third party advisory
http://packetstormsecurity.com/files/158695/FreeBSD-ip6_setpktopt-Use-After-Free-Privilege-Escalation.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-7457?
CVE-2020-7457 has been scored as a high severity vulnerability.
How to fix CVE-2020-7457?
To fix CVE-2020-7457, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-7457 being actively exploited in the wild?
It is possible that CVE-2020-7457 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~65% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-7457?
CVE-2020-7457 affects n/a FreeBSD.
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