Is CVE-2019-1000020 in the CISA KEV catalog?

No. CVE-2019-1000020 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-1000020?

CVE-2019-1000020 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2019-1000020?

CVE-2019-1000020 has an EPSS score of 3.20% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-1000020?

Upgrade libarchive on debian 11 to 3.3.3-4 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2019-1000020

MEDIUMEPSS 87th pctl

6.5

CVSS v3

NVD

Description

libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961 onwards (version v2.8.0 onwards) contains a CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in ISO9660 parser, archive_read_support_format_iso9660.c, read_CE()/parse_rockridge() that can result in DoS by infinite loop. This attack appears to be exploitable via the victim opening a specially crafted ISO9660 file.

CWE-835

How to fix

Remediation Available

libarchiveDebian

Fixed in:3.3.3-4CVE-2019-1000020

libarchiveUbuntu

Fixed in:3.1.2-7ubuntu2.8USN-3884-1

Fixed in:3.1.2-11ubuntu0.16.04.6USN-3884-1

Fixed in:3.2.2-3.1ubuntu0.3USN-3884-1

libarchive13Ubuntu

Fixed in:3.1.2-7ubuntu2.8USN-3884-1

Fixed in:3.1.2-11ubuntu0.16.04.6USN-3884-1

Fixed in:3.2.2-3.1ubuntu0.3USN-3884-1

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 ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.20%probability of exploitation in 30 days

87thpercentile

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

References

Patch1

github.com

Third-Party Advisory5

Other references5

Related Vulnerabilities

Other CWE-835 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13935	High	7.5	88%	-	Fix
CVE-2020-36227	High	7.5	78%	-	Fix
CVE-2022-0778	High	7.5	71%	-	Fix
CVE-2019-14241	High	7.5	70%	-	-
CVE-2017-16944	High	7.5	63%	-	Fix
CVE-2024-20353	High	8.6	63%	KEV	-

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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.