10 August 2022
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.3928 Citrix Hypervisor Security Bulletin for CVE-2022-33745 10 August 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Citrix Hypervisor XenServer Publisher: Citrix Operating System: Citrix XenServer Resolution: Patch/Upgrade CVE Names: CVE-2022-33745 Original Bulletin: https://support.citrix.com/article/CTX463455/citrix-hypervisor-security-bulletin-for-cve202233745 Comment: CVSS (Max): 8.8 CVE-2022-33745 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H) CVSS Source: NVD Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- Citrix Hypervisor Security Bulletin for CVE-2022-33745 Reference: CTX463455 Category : Low Created : 09 August 2022 Modified : 09 August 2022 Applicable Products o Citrix Hypervisor o XenServer Description of Problem A security issue has been identified in Citrix Hypervisor 7.1 LTSR CU2 that may allow privileged code in a PV guest VM to fail to perform management operations. The issue has the following CVE identifier: o CVE-2022-33745 Mitigating Factors Customers who are not running PV guest VMs are not affected by this issue. What Customers Should Do Citrix has released a hotfix to address this issue. Citrix recommends that affected customers install this hotfix as their patching schedule allows. The hotfix can be downloaded from the following location: Citrix XenServer 7.1 CU2 LTSR: CTX462418 - https://support.citrix.com/article/ CTX462418 What Citrix is Doing Citrix is notifying customers and channel partners about this potential security issue through the publication of this security bulletin on the Citrix Knowledge Center at https://support.citrix.com/securitybulletins . Obtaining Support on This Issue If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at https://www.citrix.com/support/open-a-support-case . Subscribe to Receive Alerts Citrix strongly recommends that all customers subscribe to receive alerts when a Citrix security bulletin is created or modified at https://support.citrix.com /user/alerts . Reporting Security Vulnerabilities to Citrix Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For details on our vulnerability response process and guidance on how to report security-related issues to Citrix, please see the following webpage: https://www.citrix.com/about/ trust-center/vulnerability-process.html . Disclaimer This document is provided on an "as is" basis and does not imply any kind of guarantee or warranty, including the warranties of merchantability or fitness for a particular use. Your use of the information on the document is at your own risk. Citrix reserves the right to change or update this document at any time. Customers are therefore recommended to always view the latest version of this document directly from the Citrix Knowledge Center. Changelog Date Change 2022-08-09 Initial Publication - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to email@example.com and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: firstname.lastname@example.org Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBYvLwiskNZI30y1K9AQil3w/+MBSd4P6WzxuceVOPs6xheF8L37NtkzKO JyDbRaz5iKDpg9ZsbUXqa3HIjNZ++aLd15aQQYtxfHPti+oumZztjLEdKloqOrS9 sY6i2Ow0hZau9ELEkUCWgbiChZ3OI0yMrqvGO8ML9emELAdcpD0X7rnrXSBbfBXK xjxvvaKr33/fJZKIzM0qxBoIGvjOSpm0kHEuwtBGYPy1LvxwU6QXU+OCEMkanKL5 u8yDEp5Or0ceidtUpb2oj9eJB8vNthLjst6zkbNrm8STWp1s9em1R6YeTzqGTnQr KcpgpC/bPAaPog8GU76sCEIHlwnSYgQEZJ4nJapxr3fJBIkJf/16nEOToCYKs7K0 z3JanUH4opik5pwXAVFjYteErs+wtFgnep4g7xXqJ67A1Hp+EOsOCoLRKTICnrfF R9YdhvqxuGSMP/QOq4LjVrB4Rv5ypM2qhelnKVUjWyA2M20Lmm1Sb/opMj001Nwl ruzu4XDTqElIZt4+oJUhSPCLcoLUOgHplQipxq1uBUzE9SAGEaoJ+GvdG8KFZDqh fjvNmcsEQdhYnFDKjVuGzZ9UGN8m+802TGsyvMpjQk6G8UD7f0UCzibb7q37b3Iy DHxUlOyfatFNkMTUVLWfm4NUkgiAFiof0QYAhEPGw2Cmw2KttSKZILYSPektt07O gBjyuHZ8kZE= =JMxe -----END PGP SIGNATURE-----