xen-4.18.0_06-2.1 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2024:13745 Final 1 1 2024-06-17T21:45:33Z current 2024-06-17T21:45:33Z 2024-06-17T21:45:33Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z xen-4.18.0_06-2.1 on GA media These are all security issues fixed in the xen-4.18.0_06-2.1 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2024-13745 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) E-Mail link for openSUSE-SU-2024:13745 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2023-46841/ SUSE CVE CVE-2023-46841 page openSUSE Tumbleweed xen-4.18.0_06-2.1 xen-devel-4.18.0_06-2.1 xen-doc-html-4.18.0_06-2.1 xen-libs-4.18.0_06-2.1 xen-tools-4.18.0_06-2.1 xen-tools-domU-4.18.0_06-2.1 xen-tools-xendomains-wait-disk-4.18.0_06-2.1 xen-4.18.0_06-2.1 as a component of openSUSE Tumbleweed xen-devel-4.18.0_06-2.1 as a component of openSUSE Tumbleweed xen-doc-html-4.18.0_06-2.1 as a component of openSUSE Tumbleweed xen-libs-4.18.0_06-2.1 as a component of openSUSE Tumbleweed xen-tools-4.18.0_06-2.1 as a component of openSUSE Tumbleweed xen-tools-domU-4.18.0_06-2.1 as a component of openSUSE Tumbleweed xen-tools-xendomains-wait-disk-4.18.0_06-2.1 as a component of openSUSE Tumbleweed Recent x86 CPUs offer functionality named Control-flow Enforcement Technology (CET). A sub-feature of this are Shadow Stacks (CET-SS). CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses are accompanied by so called "shadow stacks", holding little more than return addresses. Shadow stacks aren't writable by normal instructions, and upon function returns their contents are used to check for possible manipulation of a return address coming from the traditional stack. In particular certain memory accesses need intercepting by Xen. In various cases the necessary emulation involves kind of replaying of the instruction. Such replaying typically involves filling and then invoking of a stub. Such a replayed instruction may raise an exceptions, which is expected and dealt with accordingly. Unfortunately the interaction of both of the above wasn't right: Recovery involves removal of a call frame from the (traditional) stack. The counterpart of this operation for the shadow stack was missing. CVE-2023-46841 openSUSE Tumbleweed:xen-4.18.0_06-2.1 openSUSE Tumbleweed:xen-devel-4.18.0_06-2.1 openSUSE Tumbleweed:xen-doc-html-4.18.0_06-2.1 openSUSE Tumbleweed:xen-libs-4.18.0_06-2.1 openSUSE Tumbleweed:xen-tools-4.18.0_06-2.1 openSUSE Tumbleweed:xen-tools-domU-4.18.0_06-2.1 openSUSE Tumbleweed:xen-tools-xendomains-wait-disk-4.18.0_06-2.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2023-46841.html CVE-2023-46841 https://bugzilla.suse.com/1219885 SUSE Bug 1219885