CVE-2018-10657

CVSS V2 Medium 5 CVSS V3 High 7.5

Description

Matrix Synapse before 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 2^63 - 1 render rooms unusable, related to federation/federation_base.py and handlers/message.py, as exploited in the wild in April 2018.

Overview

CVE ID
CVE-2018-10657

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2018-05-02T16:29:00

Last Modified Date
2018-06-07T15:49:26

Weakness Enumerations

CWE	URL
CWE-20	http://cwe.mitre.org/data/definitions/20.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:matrix:synapse::::::::	1	OR		0.28.1

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://matrix.org/blog/2018/05/01/security-update-synapse-0-28-1/	Vendor Advisory
https://github.com/matrix-org/synapse/commit/33f469ba19586bbafa0cf2c7d7c35463bdab87eb	Patch

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2018-10657
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10657

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 18:42:55				Added to TrackCVE
2022-12-03 05:50:25	2018-05-02T16:29Z	2018-05-02T16:29:00	CVE Published Date	updated
2022-12-03 05:50:25		2018-06-07T15:49:26	CVE Modified Date	updated
2022-12-03 05:50:25		Analyzed	Vulnerability Status	updated