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ibmIBM6A618EAE42104251ED8BFD4A24087719BC5523571FCFED871C921517BEA0FE71
HistoryJun 21, 2021 - 9:55 p.m.

Security Bulletin: OpenSSL publicly disclosed vulnerability affects MessageGateway (CVE-CVE-2021-3449)

2021-06-2121:55:43
www.ibm.com
20

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

64.6%

JSON

Summary

MessageGateway has addressed the following vulnerability by updating the version of OpenSSL.

Vulnerability Details

CVEID:CVE-2021-3449
**DESCRIPTION:**OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in signature_algorithms processing. By sending a specially crafted renegotiation ClientHello message from a client, a remote attacker could exploit this vulnerability to cause the TLS server to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198752 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM WIoTP MessageGateway 5.0.0.1

Remediation/Fixes

Product

| VRMF| APAR| Remediation/First Fix
—|—|—|—
IBM WIoTP MessageGateway|

5.0.0.2

|

IT37192

| 5.0.0.2-IBM-IMA-IFIT37191

Workarounds and Mitigations

None

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5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

64.6%

JSON
Related for 6A618EAE42104251ED8BFD4A24087719BC5523571FCFED871C921517BEA0FE71
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