Is CVE-2019-20423 in the CISA KEV catalog?

No. CVE-2019-20423 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-20423?

CVE-2019-20423 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-20423?

CVE-2019-20423 has an EPSS score of 2.06% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-20423?

Upgrade lustre to 2.12.3 or later.

CVE & CISA-KEV Catalog

CVE-2019-20423

HIGHEPSS 79th pctl

7.5

CVSS v3

NVD

Description

In the Lustre file system before 2.12.3, the ptlrpc module has a buffer overflow and panic due to the lack of validation for specific fields of packets sent by a client. The function target_handle_connect() mishandles a certain size value when a client connects to a server, because of an integer signedness error.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

lustreNVD

Affected:< 2.12.3Fixed in:2.12.3CVE-2019-20423derived from NVD

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

2.06%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Exploit1

jira.whamcloud.com

Vendor Advisory2

Third-Party Advisory1

review.whamcloud.com

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	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.