CVE-2018-17157

Description

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request. Unprivileged remote users with access to the NFS server may be able to execute arbitrary code.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 53.03% Top 5%
Vendor Advisory freebsd.org
Affected: FreeBSD FreeBSD
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/106192 third party advisory vdb entry
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-25/ third party advisory
https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc patch vendor advisory
http://www.securitytracker.com/id/1042164 patch third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2018-17157?
CVE-2018-17157 has been scored as a critical severity vulnerability.
How to fix CVE-2018-17157?
To fix CVE-2018-17157, 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-2018-17157 being actively exploited in the wild?
It is possible that CVE-2018-17157 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~53% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-17157?
CVE-2018-17157 affects FreeBSD FreeBSD.
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