Security Bulletin
Summary
Multiple Vulnerabilities in http-server affect Cloud Pak System.
Vulnerability Details
CVEID: CVE-2024-38474
DESCRIPTION: Apache HTTP Server could allow a remote attacker to execute arbitrary code on the system, caused by a substitution encoding issue in mod_rewrite. By sending a specially crafted request, an attacker could exploit this vulnerability to execute scripts in directories permitted by the configuration.
CVSS Base score: 8.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/296125 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N)
CVEID: CVE-2024-38477
DESCRIPTION: Apache HTTP Server is vulnerable to a denial of service, caused by a NULL pointer dereference flaw in mod_proxy. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/296122 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)
CVEID: CVE-2024-27316
DESCRIPTION: Apache HTTP Server is vulnerable to a denial of service, caused by the failure to check or limit the use of HTTP/2 CONTINUATION frames that can be sent within a single stream. By sending a stream of CONTINUATION frames that will not be appended to the header list in memory but will still be processed and decoded by the server or will be appended to the header list, a remote attacker could exploit this vulnerability to cause an out of memory (OOM) crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/286950 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)
CVEID: CVE-2024-38475
DESCRIPTION: Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure.
Substitutions in server context that use a backreferences or variables as the first segment of the substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag "UnsafePrefixStat" can be used to opt back in once ensuring the substitution is appropriately constrained.
CVSS Base score: 8.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/296124 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Cloud Pak System | 2.3.3.7, 2.3.3.7 iFix1 (Power) |
| IBM Cloud Pak System | 2.3.3.6, 2.3.3.6 iFIx1, 2.3.3.6 iFIx2 (Intel) |
| IBM Cloud Pak System | 2.3.4.0 (Intel) |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now by applying the fix reported below.
For Intel, upgrade to minimum Fix Pack required Cloud Pak System v2.3.4.1,
apply Cloud Pak System v2.3.4.1 iFix1 at IBM Fix Central
information on upgrading here http://www.ibm.com/support/docview.wss?uid=ibm10887959
For Power, apply IBM Cloud Pak System v2.3.5.0 at IBM Fix Central/Passport Advantage Online.
information on upgrading here http://www.ibm.com/support/docview.wss?uid=ibm10887959
For unsupported versions the recommendation is to upgrade to supported version of the product.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
29 Oct 2024: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
29 October 2024
Initial Publish date:
29 October 2024
UID
ibm17173035