Is CVE-2020-8231 in the CISA KEV catalog?

No. CVE-2020-8231 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-8231?

CVE-2020-8231 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-8231?

CVE-2020-8231 has an EPSS score of 3.72% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-8231?

Upgrade curl on debian 11 to 7.72.0-1 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2020-8231

HIGHEPSS 88th pctl

7.5

CVSS v3

NVD

Description

Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.

CWE-416Use After Free

How to fix

Remediation Available

curlDebian

Fixed in:7.72.0-1CVE-2020-8231

curlUbuntu

Fixed in:7.35.0-1ubuntu2.20+esm5USN-4466-2

Fixed in:7.47.0-1ubuntu2.18USN-4665-1

Fixed in:7.47.0-1ubuntu2.16USN-4466-1

Fixed in:7.58.0-2ubuntu3.12USN-4665-1

Fixed in:7.58.0-2ubuntu3.10USN-4466-1

Fixed in:7.68.0-1ubuntu2.2USN-4466-1

Fixed in:7.68.0-1ubuntu2.4USN-4665-1

libcurl3Ubuntu

Fixed in:7.47.0-1ubuntu2.18USN-4665-1

Fixed in:7.47.0-1ubuntu2.16USN-4466-1

libcurl3-gnutlsUbuntu

Fixed in:7.35.0-1ubuntu2.20+esm5USN-4466-2

Fixed in:7.47.0-1ubuntu2.18USN-4665-1

Fixed in:7.47.0-1ubuntu2.16USN-4466-1

Fixed in:7.58.0-2ubuntu3.12USN-4665-1

Fixed in:7.58.0-2ubuntu3.10USN-4466-1

Fixed in:7.68.0-1ubuntu2.4USN-4665-1

Fixed in:7.68.0-1ubuntu2.2USN-4466-1

libcurl3-nssUbuntu

Fixed in:7.35.0-1ubuntu2.20+esm5USN-4466-2

Fixed in:7.47.0-1ubuntu2.16USN-4466-1

Fixed in:7.47.0-1ubuntu2.18USN-4665-1

Fixed in:7.58.0-2ubuntu3.10USN-4466-1

Fixed in:7.58.0-2ubuntu3.12USN-4665-1

Fixed in:7.68.0-1ubuntu2.2USN-4466-1

Fixed in:7.68.0-1ubuntu2.4USN-4665-1

libcurl4Ubuntu

Fixed in:7.58.0-2ubuntu3.10USN-4466-1

Fixed in:7.58.0-2ubuntu3.12USN-4665-1

Fixed in:7.68.0-1ubuntu2.2USN-4466-1

Fixed in:7.68.0-1ubuntu2.4USN-4665-1

UniversalForwarderWindows application

Affected:8.2.0 8.2.12Fixed in:8.2.12Splunk, Inc.

Affected:9.0.0 9.0.6Fixed in:9.0.6Splunk, Inc.

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

Exploit Intelligence

3.72%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch4

Third-Party Advisory4

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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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.