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TI-2018-08925 Aliases CVE-2018-12433GHSA-h29m-v9g7-4vg2

cryptlib through 3.4.4 allows a memory-cache side-channel attack on DSA and ECDSA…

Priority LOW 22CWE-200Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

cryptlib through 3.4.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. NOTE: the vendor does not include side-channel attacks within its threat model

Why it matters now

EPSS 0.00341 27th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cryptlib:cryptlib:*:*:*:*:*:*:*:*up to 3.4.4VulnerableCryptlib
  • cpe:2.3:a:cryptlib:cryptlib:*:*:*:*:*:*:*:* Versions up to 3.4.4 Vulnerable ·Cryptlib

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-12433
  2. 2026-10-03 Alias added: GHSA-h29m-v9g7-4vg2

References

Exploit 1

  • TI-2024-00183 Cryptlib: rsa key exchange ciphersuites in tls vulnerable to marvin attack CVSS 3.1MEDIUM 5.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences