AMD CPU Publ. 51810 Errata 793 Denial of Service

Credit: MITRE
Risk: Medium
Local: Yes
Remote: Yes
CWE: CWE-399

Ogólna skala CVSS: 4.7/10
Znaczenie: 6.9/10
Łatwość wykorzystania: 3.4/10
Wymagany dostęp: Lokalny
Złożoność ataku: Średnia
Autoryzacja: Nie wymagana
Wpływ na poufność: Brak
Wpływ na integralność: Brak
Wpływ na dostępność: Pełny

The person who requested CVE-2013-6885 asked that we send the CVE assignment here because various open-source software will probably be adding code to prevent this denial of service attack. 793 Specific Combination of Writes to Write Combined Memory Types and Locked Instructions May Cause Core Hang Under a highly specific and detailed set of internal timing conditions, a locked instruction may trigger a timing sequence whereby the write to a write combined memory type is not flushed, causing the locked instruction to stall indefinitely. Potential Effect on System Processor core hang. Suggested Workaround BIOS should set MSRC001_1020[15] = 1b. No fix planned - -- CVE assignment team, MITRE CVE Numbering Authority M/S M300 202 Burlington Road, Bedford, MA 01730 USA [ PGP key available through ]


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