Test ID:	1.3.6.1.4.1.25623.1.0.104897
Category:	General
Title:	Missing Linux Kernel mitigations for 'Speculative Return Stack Overflow (SRSO)' hardware vulnerability (INCEPTION, AMD-SB-7005)
Summary:	The remote host is missing one or more known mitigation(s) on; Linux Kernel side for the referenced 'Speculative Return Stack Overflow (SRSO)' hardware; vulnerability dubbed 'INCEPTION'.
Description:	Summary: The remote host is missing one or more known mitigation(s) on Linux Kernel side for the referenced 'Speculative Return Stack Overflow (SRSO)' hardware vulnerability dubbed 'INCEPTION'. Affected Software/OS: Various AMD CPUs. Please see the references for the full list of affected CPUs. Solution: The following solutions exist: - Update to a more recent Linux Kernel to receive mitigations on Kernel level and info about the mitigation status from it - Enable the mitigation(s) in the Linux Kernel (might be disabled depending on the configuration) Additional possible mitigations (if provided by the vendor) are to: - install a Microcode update - update the BIOS of the Mainboard Note: Please create an override for this result if one of the following applies: - the sysfs file is not available but other mitigations like a Microcode update is already in place - the sysfs file is not available but the CPU of the host is not affected - the reporting of the Linux Kernel is not correct (this is out of the control of this VT) CVSS Score: 3.8 CVSS Vector: AV:L/AC:H/Au:S/C:C/I:N/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2023-20569 Debian Security Information: DSA-5475 (Google Search) https://www.debian.org/security/2023/dsa-5475 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HKKYIK2EASDNUV4I7EFJKNBVO3KCKGRR/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKK3IA63LSKM4EC3TN4UM6DDEIOWEQIG/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L4E4TZNMLYL2KETY23IPA43QXFAVJ46V/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7WO5JM74YJSYAE5RBV4DC6A4YLEKWLF/ https://comsec.ethz.ch/research/microarch/inception/ https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7005 https://lists.debian.org/debian-lts-announce/2023/08/msg00013.html http://www.openwall.com/lists/oss-security/2023/08/08/4
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