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HistoryNov 29, 2023 - 10:32 p.m.

Security Bulletin: IBM Event Endpoint Management is vulnerable to a denial of service in Netty (CVE-2023-44487)

2023-11-2922:32:14
www.ibm.com
15
ibm
event endpoint management
denial of service
netty
cve-2023-44487
http/2
protocol
vulnerability
upgrade
fixing
documentation

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.7

Confidence

High

EPSS

0.816

Percentile

98.4%

Summary

Operator of IBM Event Endpoint Management is vulnerable to a denial of service in Netty(< 4.1.94) (CVE-2023-44487)

Vulnerability Details

**CVEID:**CVE-2023-44487 DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by a flaw in handling multiplexed streams in the HTTP/2 protocol. By sending numerous HTTP/2 requests and RST_STREAM frames over multiple streams, a remote attacker could exploit this vulnerability to cause a denial of service due to server resource consumption.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268044 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 Event Endpoint Management 11.0.0-11.0.4

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading

Upgrade to IBM Event Endpoint Management 11.0.5 by following the upgrading and migrating documentation.

Workarounds and Mitigations

None

Affected configurations

Vulners
Node
ibmibm_event_automationMatchany
VendorProductVersionCPE
ibmibm_event_automationanycpe:2.3:a:ibm:ibm_event_automation:any:*:*:*:*:*:*:*

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.7

Confidence

High

EPSS

0.816

Percentile

98.4%