QID 378374

Date Published: 2023-06-27

QID 378374: IBM Hypertext Transfer Protocol (HTTP) Server Denial of Service (DoS) Vulnerabilty (6839161)

IBM HTTP Server used by IBM WebSphere Application Server is vulnerable to denial of service due to libexpat.

CVE-2022-43680 : libexpat is vulnerable to a denial of service, caused by a use-after free created by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.
CVE-2013-0340 : xpat is vulnerable to a denial of service, caused by the improper handling of internal entity expansion.
CVE-2017-9233 : libexpat is vulnerable to a denial of service, caused by a XML External Entity vulnerability in the parser.
ffected Versions:
IBM HTTP Server For V9.0.0.0 through 9.0.5.14
IBM HTTP Server For V8.5.0.0 through 8.5.5.22
IBM HTTP Server For 8.0.0.0 through 8.0.0.15
IBM HTTP Server For V7.0.0.0 through 7.0.0.45
QID Detection Logic (Authenticated):
Operating System: Windows
The QID checks the key "HKLM\SYSTEM\CurrentControlSet\Services" to see if IBM HTTP vulnerable version installed on the host or not.

QID Detection Logic (Authenticated):
Operating System: Linux
The QID checks the vulnerable version IBM HTTP Server. "version.signature" is used to verify the version.

An attacker could exploit this vulnerability to consume all available resources.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as High - 6.8 severity.

Solution

The vendor has released advisories and updates to fix these vulnerabilities. Refer to the following link for further details: 6839161

Vendor References

6839161 - www.ibm.com/support/pages/node/6839161

CVEs related to QID 378374

CVE-2022-43680 | CVE-2013-0340 | CVE-2017-9233 |

Software Advisories

Advisory ID	Software	Component	Link
6839161			www.ibm.com/support/pages/node/6839161

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