DSA-2019-146: RSA Data Protection Manager Security Advisory for "SACK Panic"

Document created by RSA Product Team Employee on Oct 3, 2019Last modified by RSA Product Team Employee on Oct 3, 2019
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Dell EMC Identifier:DSA-2019-146
CVE Identifier:CVE-2019-11477, CVE-2019-11478, CVE-2019-11479
Severity Rating:CVSS v3 Base Score: See NVD (http://nvd.nist.gov/) for individual scores for each CVE.
Affected Products: RSA Data Protection Manager versions prior to, and including,
Summary:Configuration changes within RSA Data Protection Manager are required to address various vulnerabilities. A remote attacker could use these vulnerabilities to cause a denial of service.

The configuration changes address the following vulnerabilities:

  • CVE-2019-11477 (SACK Panic)
  • CVE-2019-11478 (SACK Slowness)
  • CVE-2019-11479 (Excess Resource Consumption Due to Low MSS Values)


For more information about any of the Common Vulnerabilities and Exposures (CVEs) mentioned here, consult the National Vulnerability Database (NVD) at http://nvd.nist.gov/home.cfm. To search for a particular CVE, use the database’s search utility at http://web.nvd.nist.gov/view/vuln/search.


Please refer to the Security Knowledge Base article 000038015 - Mitigation for the "TCP SACK Panic" issue on the RSA Data Protection Manager appliance for a mitigation to these vulnerabilities.


RSA recommends all Data Protection Manager Appliance customers to apply the mitigation at the earliest opportunity.

Severity Rating:For an explanation of Severity Ratings, refer to Dell’s Vulnerability Disclosure Policy. RSA recommends all customers take into account both the base score and any relevant temporal and environmental scores which may impact the potential severity associated with particular security vulnerability.
EOPS Policy:RSA has a defined End of Primary Support policy associated with all major versions. Please refer to the Product Version Life Cycle for additional details.
Legal Information:

Read and use the information in this RSA Security Advisory to assist in avoiding any situation that might arise from the problems described herein. If you have any questions regarding this advisory, contact RSA Customer Support. RSA Security LLC and its affiliates, including without limitation, its ultimate parent company, Dell Technologies, distribute RSA Security Advisories in order to bring to the attention of users of the affected RSA products, important security information.


RSA recommends that all users determine the applicability of this information to their individual situations and take appropriate action. The information set forth herein is provided "as is" without warranty of any kind. RSA disclaims all warranties, either express or implied, including the warranties of merchantability, fitness for a particular purpose, title and non-infringement.


In no event shall RSA, its affiliates or its suppliers, be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if RSA, its affiliates or its suppliers have been advised of the possibility of such damages. Some jurisdictions do not allow the exclusion or limitation of liability for consequential or incidental damages, so the foregoing limitation may not apply.