CVE-2018-6829

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Summary

CVECVE-2018-6829
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-02-07 23:29:00 UTC
Updated2020-01-15 20:15:00 UTC
Descriptioncipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly, improperly encodes plaintexts, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for Libgcrypt's ElGamal implementation.

Risk And Classification

Problem Types: CWE-327

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnupg Libgcrypt All All All All

References

ReferenceSourceLinkTags
Home · weikengchen/attack-on-libgcrypt-elgamal Wiki · GitHub MISC github.com Exploit, Third Party Advisory
Attack on libgcrypt's ElGamal Encryption with Proof of Concept (PoC) MISC lists.gnupg.org Issue Tracking, Third Party Advisory
GitHub - weikengchen/attack-on-libgcrypt-elgamal: Attack on the ElGamal Implementation of libgcrypt MISC github.com Third Party Advisory
Oracle Critical Patch Update Advisory - January 2020 MISC www.oracle.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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