IBMB007EAA6077F664177E01D7B32E0BFF1BAC489CE1855FEA3AF13F40B488487B4Security Bulletin: IBM WebSphere Application Server Liberty, which is bundled with IBM WebSphere Hybrid Edition, is vulnerable to denial of service due to HTTP/2 Rapid Reset vulnerability (CVE-2023-44487)
7.5 High
CVSS3
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
6.9 Medium
AI Score
Confidence
High
0.732 High
EPSS
Percentile
98.1%
Summary
IBM WebSphere Application Server Liberty, which is bundled with IBM WebSphere Hybrid Edition, is vulnerable to a denial of service with the servlet-3.1, servlet-4.0, servlet-5.0, or servlet-6.0 feature with the HTTP/2 protocol enabled.
Vulnerability Details
Refer to the security bulletin(s) listed in the Remediation/Fixes section
Affected Products and Versions
| Affected Product(s) and Version(s) | Affecting Product(s) and Version(s) |
|---|
IBM WebSphere Hybrid Edition
- 5.1
|
IBM WebSphere Application Server Liberty
- 18.0.0.2-23.0.0.11
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the APAR PH57878 as described in Security Bulletin: IBM WebSphere Application Server Liberty is vulnerable to a denial of service (CVE-2023-44487)
Workarounds and Mitigations
None
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| ibm websphere hybrid edition | eq | 5.1 |
Related
7.5 High
CVSS3
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
6.9 Medium
AI Score
Confidence
High
0.732 High
EPSS
Percentile
98.1%