CVE-2018-6594

N/A
Published: February 3, 2018 at 03:00 AM UTC
Updated: June 17, 2026 at 02:02 AM UTC
3 products affected across 3 vendorsDebian LinuxUbuntu LinuxPycrypto

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Severity
N/A
Exploit prediction
EPSS 2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

x_refsource_MISCExploitIssue TrackingThird Party Advisory
https://github.com/dlitz/pycrypto/issues/253
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00018.html
Vendor Advisoryx_refsource_GENTOO
https://security.gentoo.org/glsa/202007-62
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3616-1/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3616-2/

CVSS

Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-326

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