CVE-2025-69420
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Last Modified:
Description
A flaw was found in OpenSSL. A type confusion vulnerability exists in the TimeStamp Response verification code, where an ASN1_TYPE union member is accessed without proper type validation. A remote attacker can exploit this by providing a malformed TimeStamp Response to an application that verifies timestamp responses. This can lead to an invalid or NULL pointer dereference, resulting in a Denial of Service (DoS) due to an application crash.
Statement
This vulnerability is rated Low for Red Hat products. A type confusion flaw in the TimeStamp Response verification code can lead to a Denial of Service when processing a specially crafted TimeStamp Response. Exploitation requires an application to call TS_RESP_verify_response() with a malformed response, and the TimeStamp protocol (RFC 3161) is not widely used. Red Hat FIPS modules are not affected as the TimeStamp Response implementation is outside the FIPS module boundary.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Additional Information
- This content is not included.Bugzilla 2430388: openssl: OpenSSL: Denial of Service via malformed TimeStamp Response
- Content from cwe.mitre.org is not included.CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
- FAQ: Frequently asked questions about CVE-2025-69420
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.
External References
Content from www.cve.org is not included.https://www.cve.org/CVERecord?id=CVE-2025-69420
Content from nvd.nist.gov is not included.https://nvd.nist.gov/vuln/detail/CVE-2025-69420
Affected Packages and Issued Red Hat Security Errata
| Products / Services | Components | State | Errata |
|---|---|---|---|
| Cost Management 4 | costmanagement/costmanagement-metrics-rhel9-operator | Fixed | RHSA-2026:3228 |
| Red Hat Discovery 2 | discovery/discovery-server-rhel9 | Fixed | RHSA-2026:1736 |
| Red Hat Discovery 2 | discovery/discovery-ui-rhel9 | Fixed | RHSA-2026:1736 |
| Red Hat Enterprise Linux 10 | edk2 | Fix deferred | |
| Red Hat Enterprise Linux 10 | shim | Fix deferred | |
| Red Hat Enterprise Linux 10 | shim-unsigned-aarch64 | Fix deferred | |
| Red Hat Enterprise Linux 10 | shim-unsigned-x64 | Fix deferred | |
| Red Hat Enterprise Linux 10 | openssl | Fixed | RHSA-2026:1472 |
| Red Hat Enterprise Linux 6 | openssl | Fix deferred | |
| Red Hat Enterprise Linux 7 | openssl | Fix deferred | |
| Red Hat Enterprise Linux 7 | ovmf | Fix deferred | |
| Red Hat Enterprise Linux 8 | compat-openssl10 | Fix deferred | |
| Red Hat Enterprise Linux 8 | edk2 | Fix deferred | |
| Red Hat Enterprise Linux 8 | mingw-openssl | Fix deferred | |
| Red Hat Enterprise Linux 8 | openssl | Fix deferred | |
| Red Hat Enterprise Linux 8 | shim | Fix deferred | |
| Red Hat Enterprise Linux 8 | shim-unsigned-x64 | Fix deferred | |
| Red Hat Enterprise Linux 9 | compat-openssl11 | Fix deferred | |
| Red Hat Enterprise Linux 9 | edk2 | Fix deferred | |
| Red Hat Enterprise Linux 9 | shim | Fix deferred | |
| Red Hat Enterprise Linux 9 | shim-unsigned-aarch64 | Fix deferred | |
| Red Hat Enterprise Linux 9 | shim-unsigned-x64 | Fix deferred | |
| Red Hat Enterprise Linux 9 | openssl | Fixed | RHSA-2026:1473 |
| Red Hat Insights proxy 1.5 | insights-proxy/insights-proxy-container-rhel9 | Fixed | RHSA-2026:2485 |
| Red Hat JBoss Core Services | openssl | Fix deferred | |
| Red Hat OpenShift Container Platform 4 | rhcos | Fix deferred | |
| Red Hat Update Infrastructure 5 | rhui5/installer-rhel9 | Fixed | RHSA-2026:2563 |
| Red Hat Update Infrastructure 5 | rhui5/cds-rhel9 | Fixed | RHSA-2026:4943 |
| Red Hat Update Infrastructure 5 | rhui5/haproxy-rhel9 | Fixed | RHSA-2026:4943 |
| Red Hat Update Infrastructure 5 | rhui5/rhua-rhel9 | Fixed | RHSA-2026:4943 |
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authorities (CNA) source for its products and services (see Red Hat classifications ).
| CVSS v3 Score Breakdown | Red Hat | NVD |
|---|---|---|
| CVSS v3 Base Score | 5.9 | |
| Attack Vector | Network | |
| Attack Complexity | High | |
| Privileges Required | None | |
| User Interaction | None | |
| Scope | Unchanged | |
| Confidentiality Impact | None | |
| Integrity Impact | None | |
| Availability Impact | High |
CVSS v3 Vector
Red Hat CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
For more information, see https://access.redhat.com/solutions/762393.
My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
- "Under investigation" doesn't necessarily mean that the product is affected by this vulnerability. It only means that our Analysis Team is still working on determining whether the product is affected and how it is affected.
- "Affected" means that our Analysis Team has determined that this product is affected by this vulnerability and might release a fix to address this in the near future.
What can I do if my product is listed as "Will not fix"?
Available options depend mostly on the Impact of the vulnerability and the current Life Cycle phase of your product. Overall, you have the following options:
- Upgrade to a supported product version that includes a fix for this vulnerability (recommended).
- Apply a mitigation (if one exists).
- Open a This content is not included.support case to request a prioritization of releasing a fix for this vulnerability.
What can I do if my product is listed as "Fix deferred"?
Available options depend mostly on the Impact of the vulnerability and the current Life Cycle phase of your product. Overall, you have the following options:
- Apply a mitigation (if one exists).
- Open a This content is not included.support case to request a prioritization of releasing a fix for this vulnerability.
- Red Hat Engineering focuses on addressing high-priority issues based on their complexity or limited lifecycle support. Therefore, lower-priority issues will not receive immediate fixes.
What is a mitigation?
I have a Red Hat product but it is not in the above list, is it affected?
Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?
My product is listed as "Out of Support Scope". What does this mean?
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