cve-2021-40528
Vulnerability from cvelistv5
Published
2021-09-06 00:00
Modified
2024-08-04 02:44
Severity ?
Summary
The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.
References
cve@mitre.orghttps://eprint.iacr.org/2021/923Technical Description, Third Party Advisory
cve@mitre.orghttps://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=3462280f2e23e16adf3ed5176e0f2413d8861320
cve@mitre.orghttps://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1Third Party Advisory
cve@mitre.orghttps://ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2Exploit, Third Party Advisory
cve@mitre.orghttps://security.gentoo.org/glsa/202210-13Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://eprint.iacr.org/2021/923Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=3462280f2e23e16adf3ed5176e0f2413d8861320
af854a3a-2127-422b-91ae-364da2661108https://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202210-13Third Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

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