NFS: FreeBSD NFS Server NFSv4 Opcode Out Of Bounds
This signature detects attempts to exploit a known vulnerability in the NFS Server component of FreeBSD. A successful attack can result in a denial-of-service condition or arbitrary code execution.
Extended 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.
Affected Products
Freebsd freebsd
Short Name
NFS:FREEBSD-INT-OVERFLOW
Severity
Major
Recommended
True
Recommended Action
Drop
Category
NFS
Keywords
Bounds CVE-2018-17157 FreeBSD NFS NFSv4 Of Opcode Out Server bid:106192
Release Date
06/20/2019
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3427
Port
TCP/2049
False Positive
Unknown
Vendors
Freebsd
CVSS Score
10.0