Security Bulletin: IBM RackSwitch firmware products are affected by vulnerabilities in Libxml2


## Summary The following vulnerabilites in Libxml2 have been addressed by IBM RackSwitch firmware products. ## Vulnerability Details ** CVEID: **[CVE-2021-3517](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3517>) ** DESCRIPTION: **GNOME libxml2 is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by xmlEncodeEntitiesInternal() in entities.c. By sending a specially crafted file, a remote attacker could trigger an out-of-bounds read and execute arbitrary code on the system or cause a denial of service. CVSS Base score: 8.6 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/202526](<https://exchange.xforce.ibmcloud.com/vulnerabilities/202526>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H) ** CVEID: **[CVE-2021-3537](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3537>) ** DESCRIPTION: **GNOME libxml2 is vulnerable to a denial of service, caused by a NULL pointer dereference flaw when parsing XML mixed content in recovery mode and post-validated. A remote attacker could exploit this vulnerability to cause the application to crash. CVSS Base score: 7.5 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/203084](<https://exchange.xforce.ibmcloud.com/vulnerabilities/203084>) 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) ## Affected Products and Versions Affected Product| Version ---|--- G7028| 7.6 G8316| 7.9 G8052| 7.11 G8264| 7.11 G8332| 7.7 G8264T| 7.9 G8124/G8124E| 7.11 G8264CS_SI_Fabric_Image| 7.8 G8264CS| 7.8 ## Remediation/Fixes Firmware fix versions are available on Fix Central: <http://www.ibm.com/support/fixcentral/> Product| Fix Version ---|--- IBM RackSwitch G7028 (G7028_Image_7.6.11.0) | IBM RackSwitch G8316 (G8316_Image_7.9.33.0) | IBM RackSwitch G8052 (G8052_Image_7.11.23.0) | IBM RackSwitch G8264 (G8264_Image_7.11.23.0) | IBM RackSwitch G8332 (G8332_Image_7.7.39.0) | IBM RackSwitch G8264T (G8264T_Image_7.9.33.0) | IBM RackSwitch G8124/G8124E (G8124_G8124E_Image_7.11.23.0) | G8264CS_SI_Fabric_Image - Bundle (G8264CS_SI_Fabric_Image_7.8.31.0) | IBM RackSwitch G8264CS (G8264CS_Image_7.8.31.0) | ## 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>) [Lenovo Product Security Advisories](<https://support.lenovo.com/us/en/product_security/home> "Lenovo Product Security Advisories" ) ## Change History 28 Feb 2022: 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 [{"Business Unit":{"code":"BU050","label":"BU NOT IDENTIFIED"},"Product":{"code":"SSWLYD","label":"PureFlex System \u0026amp; Flex System"},"Component":"","Platform":[{"code":"PF009","label":"Firmware"}],"Version":"All","Edition":""}]

Affected Software

CPE Name Name Version
g7028 7.6
g8316 7.9
g8052 7.11
g8264 7.11
g8332 7.7
g8264t 7.9
g8124/g8124e 7.11
g8264cs_si_fabric_image 7.8
g8264cs 7.8