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Fencer Intel
medium 5.7

CVE-2024-36315 json

Improper enforcement of the LFENCE serialization property may allow an attacker to bypass speculation barriers and potentially disclose sen…

published 5mo ago modified 15d ago also EUVD-2024-55576

cvss
5.7
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

Improper enforcement of the LFENCE serialization property may allow an attacker to bypass speculation barriers and potentially disclose sensitive information, potentially resulting in loss of confidentiality.

Patch / fix

  • AMD AMD EPYC™ Series 9004 Processors GenoaPI_1.0.0.E
  • AMD AMD EPYC™Series 4004 Processors ComboAM5PI_1.0.0.a/ ComboAM5PI_1.1.0.3c/ ComboAM5PI_1.2.0.3
  • AMD AMD EPYC™ 8004 Series Processors GenoaPI_1.0.0.E
  • AMD AMD Instinct™ MI300A Series Processors MI300PI 1.0.0.7
  • AMD AMD Ryzen™ Z1 Series Processors ComboAM5PI_1.0.0.a, ComboAM5PI_1.1.0.3c, ComboAM5PI_1.2.0.3
  • AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics PhoenixPI-FP8-FP7_1.2.0.0
  • AMD AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics DragonRangeFL1_1.0.0.3g
  • AMD AMD Ryzen™ 9000 Series Desktop Processors ComboAM5PI_1.2.0.3
  • AMD AMD Ryzen™ 7000 Series Desktop Processors ComboAM5PI_1.0.0.a, ComboAM5PI_1.1.0.3c, ComboAM5PI_1.2.0.3
  • AMD AMD Ryzen™ 8000 Series Desktop Processors ComboAM5PI_1.1.0.3c, ComboAM5PI_1.2.0.3
  • AMD AMD Ryzen™ 7000 Series Desktop Processors (formerly codenamed "Raphael") ComboAM5PI_1.3.0.0
  • AMD AMD Ryzen™ 8000 Series Desktop Processors (formerly codenamed "Phoenix") ComboAM5PI_1.3.0.0
  • AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa") EmbGenoaPI-SP5 1.0.0.D
  • AMD AMD EPYC™ Embedded 8004 Series Processors EmbGenoaPI-SP5 1.0.0.D
  • AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") EmbGenoaPI-SP5 1.0.0.D
  • AMD AMD Ryzen™ Embedded 8000 Series Processors EmbeddedPhoenixPI-FP7r2_1.0.0.3
  • AMD AMD Ryzen™ Embedded 7000 Series Processors EmbeddedAM5PI 1.0.0.5
  • amd64-microcode Ubuntu 24.04 LTS 3.20251202.1ubuntu0.24.04.1
  • amd64-microcode Ubuntu 25.10 3.20251202.1ubuntu0.25.10.1
  • amd64-microcode Ubuntu 26.04 LTS 3.20251202.1ubuntu1

ubuntu advisories UBUNTU-CVE-2024-36315

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2024-36315 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5mo ago

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 5.7 CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 4.0 5.7 CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • AMD AMD EPYC™ Series 9004 Processors
  • AMD AMD EPYC™Series 4004 Processors
  • AMD AMD EPYC™ 8004 Series Processors
  • AMD AMD Instinct™ MI300A Series Processors
  • AMD AMD Ryzen™ Z1 Series Processors
  • AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics
  • AMD AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics
  • AMD AMD Ryzen™ 9000 Series Desktop Processors
  • AMD AMD Ryzen™ 7000 Series Desktop Processors
  • AMD AMD Ryzen™ 8000 Series Desktop Processors
  • AMD AMD Ryzen™ 7000 Series Desktop Processors (formerly codenamed "Raphael")
  • AMD AMD Ryzen™ 8000 Series Desktop Processors (formerly codenamed "Phoenix")
  • AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa")
  • AMD AMD EPYC™ Embedded 8004 Series Processors
  • AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo")
  • AMD AMD Ryzen™ Embedded 8000 Series Processors
  • AMD AMD Ryzen™ Embedded 7000 Series Processors

Classification

Weakness
  • CWE-693 Protection Mechanism Failure

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.