Vulnerability Details : CVE-2018-16949
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.
Products affected by CVE-2018-16949
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:openafs:openafs:*:*:*:*:*:*:*:*
- cpe:2.3:a:openafs:openafs:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-16949
0.61%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-16949
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-16949
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-16949
-
https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html
[SECURITY] [DLA 1513-1] openafs security updateMailing List;Third Party Advisory
-
http://www.securityfocus.com/bid/106375
OpenAFS CVE-2018-16949 Multiple Denial of Service VulnerabilitiesThird Party Advisory;VDB Entry
-
http://openafs.org/pages/security/OPENAFS-SA-2018-003.txt
Vendor Advisory
-
https://www.debian.org/security/2018/dsa-4302
Debian -- Security Information -- DSA-4302-1 openafsThird Party Advisory
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