🛡️ USN-6319-1 — amd64-microcode

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

amd64-microcode vulnerability

Daniël Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD

processors utilising speculative execution and branch prediction may allow

unauthorised memory reads via a speculative side-channel attack. A local

attacker could use this to expose sensitive information, including kernel

memory.

Affected software

USN-6319-1 is recorded against 1 package.

  • amd64-microcode (fixed in 3.20191218.1ubuntu2.2)

Timeline and source

Published on 30 August 2023 and last revised on 25 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Advisory)
ubuntu.com (Report)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2023-08-30
Updated 2026-08-12
Modified 2026-06-25
Fix URL N/A

Affected Packages

Software From version Fixed in
amd64-microcode 3.20191218.1ubuntu2.2

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