Vulnerability Name: | CVE-2021-26318 (CCN-211183) | ||||||||||||
Assigned: | 2021-10-12 | ||||||||||||
Published: | 2021-10-12 | ||||||||||||
Updated: | 2021-10-20 | ||||||||||||
Summary: | A timing and power-based side channel attack leveraging the x86 PREFETCH instructions on some AMD CPUs could potentially result in leaked kernel address space information. | ||||||||||||
CVSS v3 Severity: | 4.7 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N) 4.1 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
4.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
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CVSS v2 Severity: | 1.9 Low (CVSS v2 Vector: AV:L/AC:M/Au:N/C:P/I:N/A:N)
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Vulnerability Type: | CWE-203 | ||||||||||||
Vulnerability Consequences: | Obtain Information | ||||||||||||
References: | Source: MITRE Type: CNA CVE-2021-26318 Source: XF Type: UNKNOWN amd-cve202126318-info-disc(211183) Source: CCN Type: Lenovo Security Advisory: LEN-65528 AMD x86 PREFETCH instruction related side-channels Source: CCN Type: AMD Bulletin ID AMD-SB-1017 Side-channels Related to the x86 PREFETCH Instruction Source: MISC Type: Vendor Advisory https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017 | ||||||||||||
Vulnerable Configuration: | Configuration 1: Configuration 2: Configuration 3: Configuration 4: Configuration 5: Denotes that component is vulnerable | ||||||||||||
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