PT-2021-4417
CVE-2021-26318
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Published
2021-10-13
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Updated
2026-07-09
Description by
CVSS 2.0
4.9
MediumMetricsAV:L/AC:L/Au:N/C:C/I:N/A:N
Name of the Vulnerable Software and Affected Versions
AMD CPUs (affected versions not specified)
Description
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. This issue is related to a Meltdown-type attack, which was initially thought not to affect AMD processors. The attack may allow an attacker to disclose kernel address space information using a side channel.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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