Is CVE-2019-14318 in the CISA KEV catalog?

No. CVE-2019-14318 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-14318?

CVE-2019-14318 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2019-14318?

CVE-2019-14318 has an EPSS score of 3.25% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-14318?

Upgrade libcrypto++ on debian 11 to 5.6.4-9 or later.

CVE & CISA-KEV Catalog

CVE-2019-14318

MEDIUMEPSS 87th pctl

5.9

CVSS v3

NVD

Description

Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because scalar multiplication in ecp.cpp (prime field curves, small leakage) and algebra.cpp (binary field curves, large leakage) is not constant time and leaks the bit length of the scalar among other information.

CWE-417

How to fix

Remediation Available

libcrypto++Debian

Fixed in:5.6.4-9CVE-2019-14318

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

3.25%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Patch1

github.com

Exploit1

eprint.iacr.org

Third-Party Advisory1

tches.iacr.org

Other references3

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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.