Security Bulletin: IBM QRadar SIEM is vulnerable to denial of service (CVE-2020-4511)


## Summary IBM QRadar could allow an authenticated user to cause a denial of service of the qflow process by sending a malformed sflow command. ## Vulnerability Details ** CVEID: **[CVE-2020-4511](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4511>) ** DESCRIPTION: **IBM QRadar could allow an authenticated user to cause a denial of service of the qflow process by sending a malformed sflow command. CVSS Base score: 6.5 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/182366](<https://exchange.xforce.ibmcloud.com/vulnerabilities/182366>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) ## Affected Products and Versions IBM QRadar SIEM 7.4.0 to 7.4.0 Patch 2 IBM QRadar SIEM 7.3.0 to 7.3.3 Patch 3 ## Remediation/Fixes [QRadar / QRM / QVM / QRIF / QNI 7.4.0 Patch 3](<https://www.ibm.com/support/fixcentral/swg/downloadFixes?parent=IBM%20Security&product=ibm/Other+software/IBM+Security+QRadar+SIEM&release=7.4.0&platform=Linux&function=fixId&fixids=7.4.0-QRADAR-QRSIEM-20200606144505&includeRequisites=1&includeSupersedes=0&downloadMethod=http> "QRadar / QRM / QVM / QRIF / QNI 7.4.0 Patch 3" ) [QRadar / QRM / QVM / QRIF / QNI 7.3.3 Patch 4](<https://www.ibm.com/support/fixcentral/swg/downloadFixes?parent=IBM%20Security&product=ibm/Other+software/IBM+Security+QRadar+Vulnerability+Manager&release=All&platform=All&function=fixId&fixids=7.3.3-QRADAR-QRSIEM-20200704141002&includeRequisites=1&includeSupersedes=0&downloadMethod=http> "QRadar / QRM / QVM / QRIF / QNI 7.3.3 Patch 4" ) ## Workarounds and Mitigations None ## Get Notified about Future Security Bulletins Subscribe to [My Notifications](< http://www-01.ibm.com/software/support/einfo.html>) to be notified of important product support alerts like this. ### References [Complete CVSS v3 Guide](<http://www.first.org/cvss/user-guide> "Link resides outside of ibm.com" ) [On-line Calculator v3](<http://www.first.org/cvss/calculator/3.0> "Link resides outside of ibm.com" ) Off ## Related Information [IBM Secure Engineering Web Portal](<http://www.ibm.com/security/secure-engineering/bulletins.html>) [IBM Product Security Incident Response Blog](<http://www.ibm.com/blogs/psirt>) ## Acknowledgement ## Change History 13 Jul 2020: 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 Review the [IBM security bulletin disclaimer and definitions](<https://www.ibm.com/support/pages/bulletin/#disclaimer>) regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment. ## Document Location Worldwide [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSBQAC","label":"IBM Security QRadar SIEM"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"7.3, 7.4","Edition":"All Editions","Line of Business":{"code":"LOB24","label":"Security Software"}}]

Affected Software

CPE Name Name Version
ibm security qradar siem 7.3
ibm security qradar siem 7.4