Is CVE-2020-14058 in the CISA KEV catalog?

No. CVE-2020-14058 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-14058?

CVE-2020-14058 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-14058?

CVE-2020-14058 has an EPSS score of 2.61% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-14058?

Upgrade squid on debian 11 to 4.12-1 or later.

CVE & CISA-KEV Catalog

CVE-2020-14058

HIGHEPSS 84th pctl

7.5

CVSS v3

NVD

Description

An issue was discovered in Squid before 4.12 and 5.x before 5.0.3. Due to use of a potentially dangerous function, Squid and the default certificate validation helper are vulnerable to a Denial of Service when opening a TLS connection to an attacker-controlled server for HTTPS. This occurs because unrecognized error values are mapped to NULL, but later code expects that each error value is mapped to a valid error string.

How to fix

Remediation Available

squidDebian

Fixed in:4.12-1CVE-2020-14058

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

2.61%probability of exploitation in 30 days

84thpercentile

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

References

Patch2

Vendor Advisory1

squid-cache.org

Third-Party Advisory1

security.netapp.com

Other references1

lists.fedoraproject.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.