CVE-2017-2646

CVSS V2 Medium 5 CVSS V3 High 7.5

Description

It was found that when Keycloak before 2.5.5 receives a Logout request with a Extensions in the middle of the request, the SAMLSloRequestParser.parse() method ends in a infinite loop. An attacker could use this flaw to conduct denial of service attacks.

Overview

CVE ID
CVE-2017-2646

Assigner
secalert@redhat.com

Vulnerability Status
Modified

Published Version
2018-07-27T18:29:01

Last Modified Date
2019-10-09T23:27:00

Weakness Enumerations

CWE	URL
CWE-835	http://cwe.mitre.org/data/definitions/835.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:redhat:keycloak::::::::	1	OR		2.5.5

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.0

Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2646	Issue Tracking Third Party Advisory
http://www.securityfocus.com/bid/96882	Third Party Advisory VDB Entry

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2017-2646
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2646

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 17:09:33				Added to TrackCVE
2022-12-03 10:36:04	2018-07-27T18:29Z	2018-07-27T18:29:01	CVE Published Date	updated
2022-12-03 10:36:04		2019-10-09T23:27:00	CVE Modified Date	updated
2022-12-03 10:36:04		Modified	Vulnerability Status	updated