Is CVE-2018-0497 in the CISA KEV catalog?

No. CVE-2018-0497 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-0497?

CVE-2018-0497 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2018-0497?

CVE-2018-0497 has an EPSS score of 2.67% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-0497?

Upgrade mbedtls on debian 11 to 2.12.0-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2018-0497

MEDIUMEPSS 84th pctl

5.9

CVSS v3

NVD

Description

ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169.

How to fix

Remediation Available

mbedtlsDebian

Fixed in:2.12.0-1CVE-2018-0497

libmbedcrypto0Ubuntu

Fixed in:2.2.1-2ubuntu0.3USN-4267-1

libmbedtls10Ubuntu

Fixed in:2.2.1-2ubuntu0.3USN-4267-1

libmbedx509-0Ubuntu

Fixed in:2.2.1-2ubuntu0.3USN-4267-1

mbedtlsUbuntu

Fixed in:2.2.1-2ubuntu0.3USN-4267-1

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 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

2.67%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Mitigation1

tls.mbed.org

Third-Party Advisory2

Other references1

usn.ubuntu.com

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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.