Security Bulletin
Summary
OpenSSL vulnerabilities were disclosed by the OpenSSL Project. OpenSSL is used by IBM DevOps Code ClearCase. [ CVE-2025-11187]
Vulnerability Details
CVEID: CVE-2025-11187
DESCRIPTION: Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation
which can trigger a stack-based buffer overflow, invalid pointer or NULL
pointer dereference during MAC verification.
Impact summary: The stack buffer overflow or NULL pointer dereference may
cause a crash leading to Denial of Service for an application that parses
untrusted PKCS#12 files. The buffer overflow may also potentially enable
code execution depending on platform mitigations.
When verifying a PKCS#12 file that uses PBMAC1 for the MAC, the PBKDF2
salt and keylength parameters from the file are used without validation.
If the value of keylength exceeds the size of the fixed stack buffer used
for the derived key (64 bytes), the key derivation will overflow the buffer.
The overflow length is attacker-controlled. Also, if the salt parameter is
not an OCTET STRING type this can lead to invalid or NULL pointer
dereference.
Exploiting this issue requires a user or application to process
a maliciously crafted PKCS#12 file. It is uncommon to accept untrusted
PKCS#12 files in applications as they are usually used to store private
keys which are trusted by definition. For this reason the issue was assessed
as Moderate severity.
The FIPS modules in 3.6, 3.5 and 3.4 are not affected by this issue, as
PKCS#12 processing is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5 and 3.4 are vulnerable to this issue.
OpenSSL 3.3, 3.0, 1.1.1 and 1.0.2 are not affected by this issue as they do
not support PBMAC1 in PKCS#12.
CWE: CWE-476: NULL Pointer Dereference
CVSS Source: CISA ADP
CVSS Base score: 6.1
CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM DevOps Code ClearCase | 11.0.0 through 11.0.0.06 |
| IBM Rational ClearCase | 10.0.1 through 10.0.1.06 |
| IBM Rational ClearCase | 9.1 through 9.1.0.11 |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now by applying a fix pack as listed in the table below:
|
Affected Versions
|
Applying the fix
|
| 9.1 through 9.1.0.11 | Install Rational ClearCase Fix Pack 12 (9.1.0.12) for 9.1 |
| 10.0.1 through 10.0.1.06 | Install Rational ClearCase Fix Pack 7 (10.0.1.07) for 10.0.1 |
| 11.0.0 through 11.0.0.06 | Install IBM DevOps Code ClearCase (11.0.1) for 11.0.0 |
For 9.0.2.x and earlier releases, IBM recommends upgrading to a fixed, supported version/release/platform of the product.
For 10.0.0.x releases, IBM recommends upgrading to 10.0.1.x release.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
16 Sep 2026: 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:
16 September 2026
Initial Publish date:
16 September 2026
UID
ibm17286348