High severity · published Dec 4, 2018
CVE-2018-17158
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request
7.5
CVSS
4.4%
EPSS
No
On KEV
Description
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request. Unprivileged remote users with access to the NFS server can crash the system by sending a specially crafted NFSv4 request.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.4% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
before 11.2; 11.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-17158
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-17158
Third Party Advisory
http://www.securityfocus.com/bid/106192
Third Party Advisory
http://www.securitytracker.com/id/1042164
Third Party Advisory
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/
Third Party Advisory
https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc
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