CVE-2018-6594
Published: 3 February 2018
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.
Priority
Status
Package | Release | Status |
---|---|---|
pycryptodome Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
bionic |
Released
(3.4.7-1ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
Patches: upstream: https://github.com/Legrandin/pycryptodome/commit/99c27a3b9e8a884bbde0e88c63234b669d4398d8 |
||
python-crypto Launchpad, Ubuntu, Debian |
artful |
Released
(2.6.1-7ubuntu0.1)
|
bionic |
Released
(2.6.1-8ubuntu2)
|
|
trusty |
Released
(2.6.1-4ubuntu0.3)
|
|
upstream |
Needs triage
|
|
xenial |
Released
(2.6.1-6ubuntu0.16.04.3)
|
|
Patches: other: https://github.com/pghmcfc/pycrypto/commit/2f6c124e127b5dd98723e7e75a9825c4ed8bd5c7 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |