Is CVE-2018-6594 in the CISA KEV catalog?

No. CVE-2018-6594 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-6594?

CVE-2018-6594 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2018-6594?

CVE-2018-6594 has an EPSS score of 2.11% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-6594?

Upgrade pycryptodome on debian 11 to 3.4.11-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-6594

HIGHEPSS 79th pctl

7.5

CVSS v3

NVD

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.

CWE-326

How to fix

Remediation Available

pycryptodomeDebian

Fixed in:3.4.11-1CVE-2018-6594

python-cryptoUbuntu

Fixed in:2.6.1-4ubuntu0.3USN-3616-1

Fixed in:2.6.1-6ubuntu0.16.04.3USN-3616-1

python3-cryptoUbuntu

Fixed in:2.6.1-4ubuntu0.3USN-3616-1

Fixed in:2.6.1-6ubuntu0.16.04.3USN-3616-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

2.11%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Exploit1

github.com

Third-Party Advisory4

Other references1

security.gentoo.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.