CVE-2019-5596

Description

In FreeBSD 11.2-STABLE after r338618 and before r343786, 12.0-STABLE before r343781, and 12.0-RELEASE before 12.0-RELEASE-p3, a bug in the reference count implementation for UNIX domain sockets can cause a file structure to be incorrectly released potentially allowing a malicious local user to gain root privileges or escape from a jail.

8.8

CVSS

Severity: High

CVSS 3.0 •

CVSS 2.0 •

EPSS 0.57%

Vendor Advisory FreeBSD.org

Affected: FreeBSD FreeBSD

References

Link	Tags
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:02.fd.asc	third party advisory patch vendor advisory
http://packetstormsecurity.com/files/155790/FreeBSD-fd-Privilege-Escalation.html

Frequently Asked Questions

What is the severity of CVE-2019-5596?: CVE-2019-5596 has been scored as a high severity vulnerability.
How to fix CVE-2019-5596?: To fix CVE-2019-5596, 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-2019-5596 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2019-5596 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-5596?: CVE-2019-5596 affects FreeBSD FreeBSD.

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