Is CVE-2019-20427 in the CISA KEV catalog?

No. CVE-2019-20427 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-20427?

CVE-2019-20427 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-20427?

CVE-2019-20427 has an EPSS score of 4.90% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-20427?

Upgrade lustre to 2.12.3 or later.

CVE & CISA-KEV Catalog

CVE-2019-20427

CRITICALEPSS 91th pctl

9.8

CVSS v3

NVD

Description

In the Lustre file system before 2.12.3, the ptlrpc module has a buffer overflow and panic, and possibly remote code execution, due to the lack of validation for specific fields of packets sent by a client. Interaction between req_capsule_get_size and tgt_brw_write leads to a tgt_shortio2pages integer signedness error.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

lustreNVD

Affected:< 2.12.3Fixed in:2.12.3CVE-2019-20427derived 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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

4.90%probability of exploitation in 30 days

91stpercentile

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

References

Exploit2

Vendor Advisory2

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.