VulnerabilityModified
CVE-2018-17159
Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.
HIGH 7.5EPSS 4.21%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 4.21% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- freebsd/freebsd
- Source
- secteam@freebsd.org
References
- http://www.securityfocus.com/bid/106192Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1042164Third Party Advisory, VDB Entry
- https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/Third Party Advisory
- https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.ascThird Party Advisory
- http://www.securityfocus.com/bid/106192Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1042164Third Party Advisory, VDB Entry
- https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/Third Party Advisory
- https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.ascThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.