FKIE_CVE-2018-6594

Vulnerability from fkie_nvd - Published: 2018-02-03 15:29 - Updated: 2024-11-21 04:10
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
lib/Crypto/PublicKey/ElGamal.py in PyCrypto through 2.6.1 generates weak ElGamal key parameters, 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 PyCrypto's ElGamal implementation.
References
cve@mitre.orghttps://github.com/TElgamal/attack-on-pycrypto-elgamalThird Party Advisory
cve@mitre.orghttps://github.com/dlitz/pycrypto/issues/253Exploit, Issue Tracking, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2018/02/msg00018.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://security.gentoo.org/glsa/202007-62
cve@mitre.orghttps://usn.ubuntu.com/3616-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3616-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/TElgamal/attack-on-pycrypto-elgamalThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/dlitz/pycrypto/issues/253Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/02/msg00018.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202007-62
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3616-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3616-2/Third Party Advisory
Impacted products
Vendor Product Version
dlitz pycrypto *
debian debian_linux 7.0
canonical ubuntu_linux 12.04
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 17.10
To clipboard 

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.