CVE-2018-17159: freebsd Uncontrolled Resource Consumption
CVSS: 7.8v2.0HighModified
Published 04-12-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-17159 is a high (CVSS 7.8) Uncontrolled Resource Consumption vulnerability in freebsd. EPSS estimates a 4.21% chance of exploitation in the next 30 days, higher than 90.8% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v2.0 (NVD)EPSS score
4.21%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 04-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
High 7.8Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
4.21%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
0.00 pp
From 4.21% on 19-09-2026
19-09-202619-10-2026
EPSS score4.21%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Freebsd1 product
- freebsdEOLFreeBSD 11.2 before 11.2-RELEASE-p5 | < 11.2 | 11.2:p5
1 vendor · 1 product
References
4 links- security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.ascVendor AdvisoryX Refsource FREEBSDThird Party Advisory