CVE-2018-6594
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.03% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 80.7% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-02-03 03:00Z8 YR AGO
- Last updated
- 2024-08-05 06:10Z2 YR AGO
- Reserved
- 2018-02-02
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- eec4a3bfd55244575807688903d88367cd6ba34ed3d64ec19adf29a6530fe2dc
05 Affected products
06 References
- github.comhttps://github.com/TElgamal/attack-on-pycrypto-elgamal
- usn.ubuntu.comUSN-3616-1https://usn.ubuntu.com/3616-1/
- github.comhttps://github.com/dlitz/pycrypto/issues/253
- lists.debian.org[debian-lts-announce] 20180215 [SECURITY] [DLA 1283-1] python-crypto security updatehttps://lists.debian.org/debian-lts-announce/2018/02/msg00018.html
- usn.ubuntu.comUSN-3616-2https://usn.ubuntu.com/3616-2/
- security.gentoo.orgGLSA-202007-62https://security.gentoo.org/glsa/202007-62
07 Fixed in
Debian 12
- pycryptodome Fixed in 3.4.11-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- pycryptodome Fixed in 3.4.11-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- pycryptodome Fixed in 3.4.11-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- python-crypto Fixed in 2.6.1-4ubuntu0.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- python-crypto Fixed in 2.6.1-6ubuntu0.16.04.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- pycryptodome Fixed in 3.4.7-1ubuntu1
- python-crypto Fixed in 2.6.1-8ubuntu2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.