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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://openafs.org/pages/security/OPENAFS-SA-2018-003.txt	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html	Mailing List Third Party Advisory
https://www.debian.org/security/2018/dsa-4302	Third Party Advisory
http://www.securityfocus.com/bid/106375	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openafs:openafs::::::::
	cpe:2.3:a:openafs:openafs::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Information

Published : 2018-09-11 18:29

Updated : 2019-03-07 08:15

NVD link : CVE-2018-16949

Mitre link : CVE-2018-16949

JSON object : View

CWE

CWE-400

Uncontrolled Resource Consumption

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Products Affected

debian

debian_linux

openafs

openafs

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