CVE-2018-16949

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 7.69% Top 10%
Vendor Advisory debian.org Vendor Advisory openafs.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/106375 third party advisory vdb entry
https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html third party advisory mailing list
http://openafs.org/pages/security/OPENAFS-SA-2018-003.txt vendor advisory
https://www.debian.org/security/2018/dsa-4302 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-16949?
CVE-2018-16949 has been scored as a high severity vulnerability.
How to fix CVE-2018-16949?
To fix CVE-2018-16949, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-16949 being actively exploited in the wild?
It is possible that CVE-2018-16949 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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