CVE-2024-26317

Summary

In illumos illumos-gate 2024-02-15, an error occurs in the elliptic curve point addition algorithm that uses mixed Jacobian-affine coordinates, causing the algorithm to yield a result of POINT_AT_INFINITY when it should not. A man-in-the-middle attacker could use this to interfere with a connection, resulting in an attacked party computing an incorrect shared secret.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://drive.google.com/file/d/1aGLAFz20-fc7ZLiWouegyK_65jCkGTDb/view?usp=sharing
• https://github.com/illumos/illumos-gate
• https://rashidkhanpathan.github.io/posts/CVE-2024-26317-Elliptic-curve-point-addition-error/

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