CVE-2018-16949

Name: CVE-2018-16949
Creator: NVD / NIST
Published: 2018-09-12T01:29:00.623+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.08%

Last modified Jun 17, 2026

CVE-2018-16949 is a vulnerability of currently unknown severity. An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several data types used as RPC input variables were implemented as unbounded array types, limited only by the inherent 32-bit length field to 4 GB. EPSS estimates a 3.08% chance of exploitation in the next 30 days.

Description

An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several data types used as RPC input variables were implemented as unbounded array types, limited only by the inherent 32-bit length field to 4 GB. An unauthenticated attacker could send, or claim to send, large input values and consume server resources waiting for those inputs, denying service to other valid connections.

Metrics

EPSS Probability

3.08%

86.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Openafs	Openafs	< 1.6.23
Openafs	Openafs	>= 1.8.0, < 1.8.2
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

http://openafs.org/pages/security/OPENAFS-SA-2018-003.txtVendor Advisory
http://www.securityfocus.com/bid/106375Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/09/msg00024.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2018/dsa-4302Third Party Advisory
http://openafs.org/pages/security/OPENAFS-SA-2018-003.txtVendor Advisory
http://www.securityfocus.com/bid/106375Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/09/msg00024.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2018/dsa-4302Third Party Advisory

Timeline

Published: Sep 12, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-16949?

How severe is CVE-2018-16949?

Severity scoring for CVE-2018-16949 is pending analysis. The EPSS model estimates a 3.08% probability of exploitation in the next 30 days.

How do I fix CVE-2018-16949?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-16949?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST