CVE-2025-22866

Timing sidechannel for P-256 on ppc64le in crypto/internal/nistec

MEDIUM 4.0

At a glance

Source
NVD
EPSS
EPSS 0.29 % · percentile 21 ()
State
PUBLISHED
Published
Updated
Assigner
Go
NVD status
Deferred

Description

Due to the usage of a variable time instruction in the assembly implementation of an internal function, a small number of bits of secret scalars are leaked on the ppc64le architecture. Due to the way this function is used, we do not believe this leakage is enough to allow recovery of the private key when P-256 is used in any well known protocols.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 4.0CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NCISA-ADP
CVSS 3.1MEDIUM 4.0CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Advisories

European references

CERT-FR advisories

Affected products

ProductVersions
Go standard library · crypto/internal/nistecaffected 0 < 1.22.12 ; affected 1.23.0-0 < 1.23.6 ; affected 1.24.0-0 < 1.24.0-rc.3

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD