Is CVE-2018-0735 in the CISA KEV catalog?

No. CVE-2018-0735 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-0735?

CVE-2018-0735 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2018-0735?

CVE-2018-0735 has an EPSS score of 4.76% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-0735?

Upgrade openssl on debian 11 to 1.1.1a-1 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2018-0735

MEDIUMEPSS 91th pctl

5.9

CVSS v3

NVD

Description

The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1).

CWE-327

How to fix

Remediation Available

opensslDebian

Fixed in:1.1.1a-1CVE-2018-0735

libssl1.0.0Ubuntu

Fixed in:1.0.1f-1ubuntu2.27USN-3840-1

Fixed in:1.0.2g-1ubuntu4.14USN-3840-1

Fixed in:1.0.2n-1ubuntu5.2USN-3840-1

libssl1.1Ubuntu

Fixed in:1.1.0g-2ubuntu4.3USN-3840-1

opensslUbuntu

Fixed in:1.0.1f-1ubuntu2.27USN-3840-1

Fixed in:1.0.2g-1ubuntu4.14USN-3840-1

Fixed in:1.1.0g-2ubuntu4.3USN-3840-1

openssl1.0Ubuntu

Fixed in:1.0.2n-1ubuntu5.2USN-3840-1

Node.jsWindows application

Affected:10.0.0 10.12.0Fixed in:10.12.0Node.js Foundation

Affected:11.0.0 11.3.0Fixed in:11.3.0Node.js Foundation

Node.js (LTS)Windows application

Affected:11.0.0 11.3.0Fixed in:11.3.0Node.js Foundation

Affected:10.0.0 10.12.0Fixed in:10.12.0Node.js Foundation

Oracle VirtualBoxWindows application

Affected:5.0.0 5.2.24Fixed in:5.2.24Oracle and/or its affiliates

Affected:6.0.0Fixed in:6.0.0Oracle and/or its affiliates

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

Exploit Intelligence

4.76%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Patch3

Vendor Advisory1

openssl.org

Third-Party Advisory9

Other references2

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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.