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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.1513 CVE-2017-15597 - Citrix XenServer Security Update 10 March 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Citrix XenServer Publisher: Citrix Operating System: Windows UNIX variants (UNIX, Linux, OSX) Resolution: Patch/Upgrade CVE Names: CVE-2017-15597 Original Bulletin: https://support.citrix.com/article/CTX229057/cve201715597-citrix-xenserver-security-update Comment: CVSS (Max): 9.1 CVE-2017-15597 (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H) CVSS Source: NVD Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- CVE-2017-15597 - Citrix XenServer Security Update Reference: CTX229057 Category : High Created : 24 October 2017 Modified : 15 August 2019 Applicable Products o XenServer 7.2 Description of Problem A security vulnerability has been identified in Citrix XenServer that may allow a malicious administrator of a guest VM to compromise the host. This vulnerability affects all currently supported versions of Citrix XenServer up to and including Citrix XenServer 7.2. The following vulnerability has been addressed: o CVE-2017-15597: pin count / page reference race in grant table code What Customers Should Do Hotfixes have been released to address these issues. Citrix strongly recommends that affected customers install these hotfixes as soon as possible. The hotfixes can be downloaded from the following locations: Citrix XenServer 7.2: CTX229067 - https://support.citrix.com/article/CTX229067 Citrix XenServer 7.1 LTSR CU1: CTX229066 - https://support.citrix.com/article/ CTX229066 Citrix XenServer 7.1 LTSR: CTX229065 - https://support.citrix.com/article/ CTX229065 Citrix XenServer 7.0: CTX229064 - https://support.citrix.com/article/CTX229064 Citrix XenServer 6.5 SP1: CTX229063 - https://support.citrix.com/article/ CTX229063 What Citrix Is Doing Citrix is notifying customers and channel partners about this potential security issue. This article is also available from the Citrix Knowledge Center at http://support.citrix.com/ . 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.html . Reporting Security Vulnerabilities Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For guidance on how to report security-related issues to Citrix, please see the following document: CTX081743 - - Reporting Security Issues to Citrix Changelog +-------------------------------------+---------------------------------------+ |Date |Change | +-------------------------------------+---------------------------------------+ |24th October 2017 |Initial Publishing | +-------------------------------------+---------------------------------------+ - --------------------------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 auscert@auscert.org.au and we will forward your request to the appropriate person. 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If you have any questions or need further information, please contact them directly. 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: auscert@auscert.org.au 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/ iQIVAwUBZAq7mckNZI30y1K9AQg5JA/+OK87/yjkVaz5jMbn+huzcT7sE9pgjvyF vore+fQ6jd1hNmHG3KcY29Yp7cNMozLsfzInVO0GHBqv+cRF+sBNXdUVeMpCTZne ZJKh4NzJw7JrhnheAtOag6Zh0ySTgQnLTov6JjQYT6X6QS9X2JcY9rkuTvzTpkM9 FKjNzFxHJ6wc5EeK73bOxgODpDncnadWNExeGs8wqBLj4Xe+/dP1pfRQvvNUhrFd atFWm0CghKEm5VPI9qCULEOgdWGrKxeNx1ycj6q3ld1xkdXdMumBdTRoR/Uk1VBa AlCBZHNIDrL/1uXr2H5q+y+gLbHHjlTk9iDiwL9Dbiu4rjdl79ZNpnsTCY8mEh5Z ZUIW4FIx3LdYLgWoLrVGRmN0u90jpEGcgQJiRUktonq0pWhf3s3M+rmoQjr1HMwg Ua8zpy7cahl7976E2gG3V2lc/7eMzhqCyYE7cCmwWrqf5mpswBmd+LHJADAYvlR6 dG3shtIHoKPgJ8YQwvj9Sq1CVwZSUUy617kYq5P1GcK8abLTzK9GxXQbibYyl6HS ir+XbrdcRjm37XJPK1xDIDIfHwFDznK8Hd9rxaPBK9o0NXPVMzlOrttY7wjtLLVE fCp1zLha7CuMvTrbuFp8R7BR2PdCnNu1vBYxPtpYMbtWgX95gQp98CziXGFncspV fp09iz2M2Qk= =ZSYu -----END PGP SIGNATURE-----